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    Home / Recipes / Sauces & Condiments / 5 Minute Microwave Keto Lemon Curd

    5 Minute Microwave Keto Lemon Curd

    January 14, 2023 by Keto Cooking Christian 60 Comments

    This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases, see Disclosure.
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    Silky smooth, super lemony and incredibly easy to make, this Keto Lemon Curd comes together in only 5 minutes! It has the same texture and flavor as the traditional stovetop version.

    5 Minute Keto Lemon Curd in open glass jar with spoon holding up some
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    Jump to:
    • ❤️ Why You'll Love this 5 Minute Lemon Curd Recipe
    • 🛒 What's in Microwave Lemon Curd
    • 🔪 How to Make 5 Minute Keto Lemon Curd
    • Ways to Use this Lemon Curd Recipe
    • Are Lemons Keto?
    • How Many Carbs in Lemons?
    • Is Lemon Curd the Same as Lemon Pie Filling?
    • How Long Does Lemon Curd Last? Should lemon curd be refrigerated?
    • Can you Freeze Lemon Curd?
    • What Does Lemon Curd Taste Like?
    • Tips to Thicken Lemon Curd
    • Keto Recipes Using Lemon Curd
    • Keto Lemon Desserts

    ❤️ Why You'll Love this 5 Minute Lemon Curd Recipe

    • Takes only 5 minutes to make in your microwave
    • Has the same texture and flavor as the traditional stovetop version
    • Great to use in so many recipes
    • Made with only 5 simple ingredients
    • Sugar-free and Keto friendly
    closeup of lemon curd in open jar with lemons in background

    If you're a big lemon fan and have been making traditional lemon curd, you're absolutely going to love this recipe! This is a quick method of making low carb lemon curd that is just as delicious, but is MUCH easier.

    Trust me when I tell you that it's every bit as good as when you make it with the traditional method!  You'll never be able to tell the difference!

    closeup of lemon curd in spoon over jar

    You can use this for all your lemon curd desserts. It's especially delicious in this Lemon Cheesecake Mousse which is absolutely fantastic!

    🛒 What's in Microwave Lemon Curd

    • Lemon Juice
    • Lemon Zest
    • monk fruit/allulose
    • Butter
    • Eggs
    • Salt

    *Exact measurements are listed in the recipe card below.

    🥣 Recommended Tools

    • Microwave safe mixing bowl
    • Hand mixer or whisk

    🔪 How to Make 5 Minute Keto Lemon Curd

    Add the eggs into a large mixing bowl and whisk.

    whisked eggs and sweetener in mixing bowl unmixed

    Mix in the sweetener for 2 minutes or until well combined.

    lemon curd ingredients in glass bowl unmixed

    Then add the remaining ingredients and mix well.

    uncooked lemon curd mixture in glass bowl

    Cook in the microwave for 1 minute, remove and whisk. Place back in the microwave to cook for another minute, remove and whisk.  

    Tip: At this point, you are probably thinking this is never going to work, but trust me it will!!

    5 Minute Keto Lemon Curd in glass bowl partially cooked

    Tip: This is what it looks like after 3 minutes.

    Repeat the process 3 more times, for a total of 5 minutes.

    fully cooked lemon curd in glass bowl

    You'll notice it thickens a little more each time. By the 5th time it's perfect curd consistency.

    Tip: This is what it looks like after the 5 minutes. It is fully cooked through and thickened perfectly.

    5 Minute Keto Lemon Curd with spoon dripping some into a glass bowl

    It should coat the back of a spoon and stay separated when you run your finger through it.

    5 Minute Keto Lemon Curd on spoon with line through it

    Allow to cool at room temperature for 10-15 minutes, then store leftovers in the fridge for up to a week, or in the freezer in an airtight jar for up to couple of months.

    5 Minute Keto Lemon Curd in open glass jar with lemons in background

    Ways to Use this Lemon Curd Recipe

    I included some great Keto lemon curd dessert recipes below, but it can be used as a topping or as a custard-like filling for many of your favorite low carb recipes. Here are a few of my favorite ways to use this microwave lemon curd:

    • Top off your favorite Gluten Free Scones with a generous dollop
    • Use as a topping over Fluffy Pancakes and Homemade Waffles
    • If you happen to over-bake your Keto Lemon Cookies no worries. Just crumble them up and layer them with lemon curd in a mini parfait dish
    • Add over the top of Keto Pound Cake and a dollop of homemade whipped cream for an extra decadent dessert or even layer with fresh berries for a trifle
    5 Minute Keto Lemon Curd in spoon held up over glass jar

    Are Lemons Keto?

    Absolutely! They're low in carbs and high in fiber. So go ahead and flavor your water or unsweetened tea with the juice of a lemon, or make your favorite Keto lemon dessert.

    Not only are they low in carbs, the nutrients in lemons are reportedly linked to being a potential aid in weight loss and digestive issues. They're an excellent source of vitamin C and have other health benefits that you can read more about in this article.

    How Many Carbs in Lemons?

    There's only 1.4 gram of carbs in lemon juice for 1 tablespoon. This entire recipe uses only ½ cup, making lemon juice a great low carb flavoring option.

    basket of lemons

    Is Lemon Curd the Same as Lemon Pie Filling?

    While they are somewhat similar, lemon pie filling is thickened with cornstarch (which isn't Keto) and typically doesn't contain butter. Lemon curd does use butter and thickens naturally from the lemon juice in the mixture.

    How Long Does Lemon Curd Last? Should lemon curd be refrigerated?

    Without a doubt, it must be refrigerated. It's best to store it in an airtight jar in the fridge for up to a week or so, or several months in the freezer.

    Can you Freeze Lemon Curd?

    Absolutely, I actually do it all the time! Sometimes I make a batch, but only need part of it, so I freeze the rest and it thaws perfectly. It's nice to always have a little on hand, in case I need some last minute.

    5 Minute Microwave Lemon Curd - Keto and Low Carb

    What Does Lemon Curd Taste Like?

    Much like the ingredients might suggest, it's SUPER lemony. I like to think of it as a more buttery and creamy version of jam.

    Tips to Thicken Lemon Curd

    Though this Keto lemon curd recipe is almost impossible to mess up, there are a couple of things that can happen that causes lemon curd to be runny. The key to making it thick is heating it enough during the cooking phase.

    The eggs and lemon work together when heated to make a custard like texture, so make sure to cook it for all of the 5 minutes. But understand, when lemon curd is still hot it's going to be loose. It begins to thicken as it chills in the fridge.

    5 Minute Keto Lemon Curd in glass jar with lemon slices and whole lemons in background

    Keto Recipes Using Lemon Curd

    • Lemon Meringue Cupcakes
    • Lemon Mascarpone Tart
    • Lemon Curd Layer Cake
    • Mini Lemon Curd Tarts
    • Lemon Curd Thumbprint Cookies

    If you don't have a microwave, you can always make my Keto Lemon Curd using the traditional stovetop method.

    5 Minute Keto Lemon Curd in spoon held up over glass jar

    Keto Lemon Desserts

    • Lemon Bars
    • Strawberry Lemonade Cake
    • Blueberry Lemon Scones
    • Mini Lemon Poppy Seed Bundt Cakes
    • Lemon Cupcakes
    5 Minute Microwave Keto Lemon Curd pin
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    5 Minute Microwave Keto Lemon Curd

    Silky smooth, super lemony and incredibly easy to make, this Keto Lemon Curd comes together in only 5 minutes!
    4.92 from 56 votes
    Author: Julianne
    Servings 12
    Print Pin
    Save RecipeSaved!
    PREP 2 minutes mins
    COOK 5 minutes mins
    TOTAL 7 minutes mins

    RECIPE VIDEO

    Ingredients
     

    • ½ cup fresh lemon juice
    • ½ cup grass-fed unsalted butter, melted
    • ¾ cup monk fruit/allulose
    • 3 egg yolks
    • 2 whole eggs
    • 2 tablespoons lemon zest
    • ¼ teaspoon salt

    Instructions
     

    • Add the eggs into a large mixing bowl and whisk.  Add in the sweetener and mix for 2 minutes or until well combined.  Add the remaining ingredients and mix well. Cook in the microwave for 1 minutes, remove and whisk.  
    • Place back in the microwave to cook for another minute, remove and whisk. Repeat the process 3 more times, for a total of 5 minutes.
    • Allow to cool at room temperature for 10-15 minutes, then store leftovers in an airtight jar the fridge for up to a week, or in the freezer.

    Recipe Notes

    *Makes about 1 ½ cups.
    If you don't have a microwave, you can always make my Keto Lemon Curd using the traditional stovetop method.

    *Make sure to scroll up and read the post for substitutions, additions and helpful tips for making this recipe.

    Course Condiment
    Cuisine American
    Calories 124kcal
    Nutrition Facts
    5 Minute Microwave Keto Lemon Curd
    Amount per Serving
    Calories
    124
    % Daily Value*
    Fat
     
    13
    g
    20
    %
    Saturated Fat
     
    8
    g
    50
    %
    Carbohydrates
     
    2
    g
    1
    %
    Protein
     
    2
    g
    4
    %
    * Percent Daily Values are based on a 2000 calorie diet.

    *Nutritional data is provided as a courtesy and is accurate to the best of my knowledge. You can verify it using the nutrition calculator of your choice. All data is based on net carbs, without sugar alcohol: Swerve, Erythritol, Monk Fruit or Allulose.

    © Copyright for Keto Cooking Christian LLC. Please use the share buttons to share on social media, but please do not copy/paste the recipe.

    Rate this Recipe

    *Originally published on November 25, 2018, updated on January 14, 2023 with new photos, improvement to the recipe and helpful tips.

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    Filed Under: 30 Minutes or Less, Posts, Recipes, Sauces & Condiments, Sweet Sauces Tagged With: 5 minute lemon curd, best keto recipes, best low carb recipes, easy keto recipes, easy lemon curd, easy low carb recipes, gluten free recipes, keto, keto diet, keto lemon curd, keto recipes, ketogenic diet, low carb lemon curd, low carb recipes, microwave lemon curd, sugar free lemon curd

    Bible verse of the day

    And this commandment have we from him, That he who loveth God love his brother also.
    1 John 4:21

    Reader Interactions

    Comments

      4.92 from 56 votes (33 ratings without comment)

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      Recipe Rating




    1. Joan Runke

      April 10, 2025 at 2:09 pm

      This looks so easy and delicious. I've been afraid to try to make lemon curd until seeing this recipe to do it in the microwave because it seemed so time consuming. I'm definitely going to try this!

      Reply
      • Keto Cooking Christian

        April 10, 2025 at 7:06 pm

        I never make it any other way now. Making it in the microwave is so quick, easy and honestly tastes just like the stovetop version. I hope you try it!

        Reply
    2. Tamra

      January 19, 2025 at 1:58 pm

      I love your recipes! Thank you so much for your hard work and making it easier for the rest of us to stay on diet.

      Reply
      • Keto Cooking Christian

        February 26, 2025 at 11:10 am

        Thank you so much! That truly means a lot. I’m so happy the recipes make it easier for you to stay on track and I truly appreciate your support!

        Reply
    3. Kath

      December 29, 2024 at 8:07 pm

      5 stars
      Made this recipe to make Lemon Mousse. Then used the 3 egg whites for a pavlova to which I added the leftover curd along with traditional cream and fruit. I powdered xylitol for the sweetener.
      This will become a recipe that I will repeat many times!

      Reply
      • Keto Cooking Christian

        December 31, 2024 at 11:27 am

        I'm so glad you enjoyed it and I love that you made pavlova with the leftover egg whites! That's a win/win!

        Reply
    4. Jeanette

      September 04, 2024 at 8:40 pm

      5 stars
      Hello. What is the serving size please? For the 124 cal and 2 carbs? Never made lemon curd before. Sooo good. I used monkfruit no grainy
      Thank you

      Reply
      • Keto Cooking Christian

        September 09, 2024 at 2:32 pm

        I do not give the exact serving measurements. The nutritional values are based on 1/12th of the recipe, which ends up being about one serving.

        Reply
    5. Joyce K

      March 28, 2024 at 11:04 am

      5 stars
      This is AMAZING!!! So quick and easy to make and the flavor is spot-on! Just tart enough, just sweet enough. After receiving a 30# (yes, that's 30 POUNDS) box of lemons I am making EVERYTHING lemon. And I am in LOVE with this lemon curd. So many things I can make with it now and so easy I can make it often.

      Reply
      • Keto Cooking Christian

        March 30, 2024 at 10:59 am

        I LOVE hearing this! I am so glad you enjoy it.

        Reply
    6. Joy

      November 12, 2023 at 8:50 am

      5 stars
      Favorite lemon curd recipe-so easy

      Reply
      • Keto Cooking Christian

        November 16, 2023 at 4:56 pm

        Thank you. I am so happy you enjoyed it.

        Reply
    7. Charlotte

      September 23, 2023 at 8:56 pm

      5 stars
      I didn't think it was going to thicken but oh my goodness, IT DID!!!!!! Smells and taste exactly like the one I bought in the market! I am so stunned and excited, I can make my own lemon curd. This is the first recipe from your collection that I have tried and I am very pleased. I am making the lemon ice cream but also adding blueberry sugar free pie filling to swirl through it. Making blueberry lemon ice cream. Thank you so much! I'll be back. I too am a Christian and enjoy the Bible verses!

      Reply
      • Keto Cooking Christian

        September 26, 2023 at 8:48 am

        Thank you so much. You'll love finding new ways to enjoy this lemon curd.

        Reply
    8. Marina

      July 01, 2023 at 5:06 pm

      5 stars
      Thank you so much for this amazingly easy recipe! Turned out perfect and I’m never making it on the stove again! God Bless you!

      Reply
      • Keto Cooking Christian

        July 04, 2023 at 9:09 am

        Thank you...God bless you as well. I'm happy the recipe worked out for you! Your review means so much.

        Reply
    9. Laura

      June 13, 2023 at 3:19 pm

      5 stars
      Super easy and Tasty. Will definitely make again!

      Reply
      • Keto Cooking Christian

        June 13, 2023 at 6:11 pm

        I am glad you enjoyed it.

        Reply
    10. Elisabeth Brandyberry

      May 20, 2023 at 7:45 pm

      I really liked the simplicity of this recipe. However even after grinding my erythritol I too ended up with crystals in the curd- still tastes great. 🙂

      Reply
      • Keto Cooking Christian

        May 21, 2023 at 1:27 pm

        The only thing I can think of is that the brand of erythritol you're using may cause that. I am so glad you enjoyed it though.

        Reply
      • Laura

        June 13, 2023 at 3:21 pm

        Try using Swerve Confectioners sugar. I used it and mine is super smooth.

        Reply
    11. Tara

      February 21, 2023 at 10:25 pm

      5 stars
      Most excellent! I’ve never made lemon curd before - wanted to try it in the cheesecake fluff and it’s DIVINE. No issues with texture (grainy as some mentioned). Super silky. I used Swerve CONFECTIONERS sugar.

      Reply
      • Keto Cooking Christian

        February 23, 2023 at 7:53 am

        That awesome to hear! I am so glad you enjoyed it.

        Reply
    12. Heather

      July 11, 2022 at 3:33 pm

      5 stars
      Could you explain the egg situation I always mess them up

      Reply
      • Keto Cooking Christian

        July 13, 2022 at 8:52 am

        I am sorry to hear that. I am not sure what situation you're having with the eggs though.

        Reply
    13. Grace

      January 18, 2022 at 1:34 pm

      5 stars
      I made your keto lemon tarts and this curd is absolutely delicious! I seriously can not believe this is keto.

      Reply
      • Keto Cooking Christian

        January 18, 2022 at 5:04 pm

        I am so glad you love them! It's truly a fail proof recipe.

        Reply
    14. Lizzy

      October 09, 2021 at 3:45 pm

      5 stars
      No comment. I am speechless.

      Reply
      • Keto Cooking Christian

        October 11, 2021 at 9:35 am

        Aww, I hope that's a great thing:-) It's such a quick and easy way to make lemon curd. I love using it in so many recipes.

        Reply
    15. Barbara

      April 03, 2021 at 7:21 pm

      5 stars
      Oh my gosh! So good!!! Thank you for the recipe.

      Reply
      • Keto Cooking Christian

        April 06, 2021 at 7:20 pm

        You're so welcome! I am glad you enjoyed it.

        Reply
    16. Louise

      December 07, 2020 at 9:08 am

      Yum! Very excited to make these for my Mom. They are her favourites. Can you suggest a substitute for the oat fiber? Thanks.

      Reply
    17. Pam

      August 29, 2020 at 11:35 am

      5 stars
      Looks go good!! Cant wait to make your lemon mascarpone dessert with this!!! Thank you!!

      Reply
      • Keto Cooking Christian

        September 12, 2020 at 9:53 am

        Looks great, hope you enjoy!

        Reply
    18. Kimm Redding

      May 03, 2020 at 4:57 pm

      5 stars
      I left a comment earlier about the consistency of this after cooking it for 3 minutes. Then after I posted it I saw my LEMON JUICE sitting on the counter. After I added it, it was PERFECT. I LOVE this and will definitely be using this in several dishes!.
      Changing my rating to a 5 star!!!

      Reply
      • Keto Cooking Christian

        May 04, 2020 at 9:10 am

        Oh wow, yeah that would definitely change the consistency a bit. Glad to hear that you love it now 🙂

        Reply
    19. Brenda Foster

      March 31, 2020 at 12:10 pm

      3 stars
      I only use Swerve Confection sweetener and I get the crystals every time I put it in the refrigerator. I have tried other recipes with the same results. Its good till I put it in the fridge.

      Reply
    20. Phyllus Lattimer

      March 13, 2020 at 7:54 pm

      My lemon five minute curd was like curd when done not creamy like picture. Not sure if because I didn't put enough lemon juice or not. What do I do with it? I don't like the strong flavor do didn't put quite as much in. 1/3 cup

      Reply
    21. Elizabeth Scott

      February 26, 2020 at 10:36 pm

      Yep, followed it to the T. So you think it could maybe be the zest?

      Reply
      • Keto Cooking Christian

        February 26, 2020 at 10:38 pm

        It's certainly possible because you will have little chunks of zest in the curd, rather than the sweetener crystalizing.

        Reply
    22. Elizabeth Scott

      February 26, 2020 at 10:30 pm

      Amazing recipe!! I just have one question, when I pulled it out of the fridge to use again, there were little sugar crystals in it, is that normal?

      Reply
      • Keto Cooking Christian

        February 26, 2020 at 10:31 pm

        There really shouldn't be if you are using Swerve confectioners. If you use granular, you will get those crystals.

        Reply
        • Kathy

          August 20, 2020 at 11:55 am

          I made this yesterday using powdered Swerve. After refrigerating overnight, I (sadly) have the same problem. The flavor is great though. 8/20/20

    23. Arleigh

      February 13, 2020 at 9:39 pm

      5 stars
      I could eat this all the time. Made spoon bread and drizzle some on it when I went to eat it

      Reply
      • Keto Cooking Christian

        February 13, 2020 at 10:04 pm

        Awesome! I love it too 🙂

        Reply
    24. Pat griffey

      January 09, 2020 at 3:32 pm

      5 stars
      This is great, I love it.

      Reply
      • Keto Cooking Christian

        January 10, 2020 at 9:36 am

        Awesome, glad you love it!

        Reply
    25. Pat griffey

      January 09, 2020 at 3:31 pm

      5 stars
      Delicious

      Reply
    26. Julie

      September 01, 2019 at 10:17 am

      4 stars
      Hello and thank you for this. Just made it and its tasting amazing. I did use granual sweetener so it is a bit gritty but it doesnt spoil it. Next time i will gtind it before hand. I am going to greeze in ice tray so can take a little at a time.

      Reply
      • Keto Cooking Christian

        September 01, 2019 at 12:33 pm

        Yes, granular will do that, which is why I prefer using confectioners. Love the ice cube tray idea, thanks for sharing!

        Reply
    27. Ronda

      August 24, 2019 at 4:35 pm

      5 stars
      I've been on a strict 20 gram low carb diet for a 1 1/2 years due to medical condition. My husband had to start low carb for his sugar so now I can afford to cook meals. I'm just learning how to cook this way and can you please tell me what lemon zest is and how long can I freeze the curd? Thank you so much for your recipes and following my Heavenly Father and sharing Christ with the world. May God bless and keep you and yours always.

      Reply
      • Keto Cooking Christian

        August 24, 2019 at 5:35 pm

        Hi Ronda,
        Lemon zest is just the outer rind of the lemon. You take a microplane and gently scrape just the yellow part (not the white pith) off the lemon. It has tremendous flavor, so I use it in this curd, and many other recipes. You can freeze the curd for at least a few months, in an airtight container. Thank for your kind words and blessings from the Lord, I appreciate it 🙂

        Reply
    28. Liz

      August 13, 2019 at 8:57 pm

      4 stars
      I love the flavor, but why does the erythritol test gritty in this recipe.

      Reply
      • Keto Cooking Christian

        August 13, 2019 at 8:59 pm

        Hi Liz,
        Did you use the Swerve confectioners? Regular granular erythritol will get gritty, that's why I use the confectioners it tends to stay smooth.

        Reply
    29. suzanne lavanaway

      August 11, 2019 at 1:18 pm

      I don't understand the serving size, it says 12 servings? But it makes 1.5 cups., so a serving is one ounce?

      Reply
      • Keto Cooking Christian

        August 11, 2019 at 8:42 pm

        1 servings is about 2 tablespoons.

        Reply
    30. julie

      June 03, 2019 at 5:14 pm

      I’m in uk are the measurements different for uk

      Reply
      • Keto Cooking Christian

        June 03, 2019 at 5:17 pm

        Hi Julie,
        You can click on the "metric" link in the recipe card and it will convert all the measurements for you.

        Reply
    31. Teresa

      December 24, 2018 at 2:03 pm

      4 stars
      This is the best stuff ever!!! I made one mistake. I didn’t double it!
      So easy to make and just luscious.

      Reply
      • Keto Cooking Christian

        December 24, 2018 at 3:28 pm

        5 stars
        Hi Teresa,
        Glad to hear you liked it! It's amazing how good it tastes for only cooking 5 minutes in a microwave! Enjoy 🙂

        Reply

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    Julianne Walser KCC

    I'm Julianne, welcome! I offer tasty and indulgent Keto and Low Carb recipes that will never leave you feeling deprived!

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