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! It has the same texture and flavor as the traditional stovetop version.
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❤️ 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
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!
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.
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🔪 How to Make 5 Minute Keto Lemon Curd
Add the eggs into a large mixing bowl and whisk.
Mix in the sweetener for 2 minutes or until well combined.
Then add the remaining ingredients and mix well.
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!!
Tip: This is what it looks like after 3 minutes.
Repeat the process 3 more times, for a total of 5 minutes.
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.
It should coat the back of a spoon and stay separated when you run your finger 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.
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
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 1/2 cup, making lemon juice a great low carb flavoring option.
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.
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.
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.
Keto Lemon Desserts
- Lemon Bars
- Strawberry Lemonade Cake
- Blueberry Lemon Scones
- Mini Lemon Poppy Seed Bundt Cakes
- Lemon Cupcakes
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5 Minute Microwave Keto Lemon Curd
RECIPE VIDEO
Ingredients
- 1/2 cup fresh lemon juice
- 1/2 cup grass-fed unsalted butter, melted
- 3/4 cup monk fruit/allulose
- 3 egg yolks
- 2 whole eggs
- 2 tablespoons lemon zest
- 1/4 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
*Make sure to scroll up and read the post for substitutions, additions and helpful tips for making this recipe.
*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.
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Rate this Recipe*Originally published on November 25, 2018, updated on January 14, 2023 with new photos, improvement to the recipe and helpful tips.
Just made this. So easy. When i read “i’m sure by now you’re thinking this isnt going to work, but trust me it does,” i decided to try it and try not to have any hesitation and it came together just as indicated. Tastes delicious. Cant wait to use it in various other things!
Thank you so much for sharing this with me! I’m so glad you trusted the process and gave it a try. It makes me happy to hear that it came together so easily and that you enjoyed the taste. I love that you’re already thinking of different ways to use it. Can’t wait to hear what you make with it next!
Could I use Stevia powder instead of Allulose?
You could use stevia powder instead of allulose, but just a heads-up, it’ll change the taste and texture a bit. Allulose works more like real sugar, so it adds sweetness and bulk. Stevia is way more concentrated and doesn’t have that same structure. If you do swap it in, you’ll want to use a lot less and might need to tweak the recipe a little.
I made this using the powdered Swerve and it came it great! Love this recipe!
That’s so awesome to hear. Thanks for letting me know.
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!
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!
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.
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!
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!
I’m so glad you enjoyed it and I love that you made pavlova with the leftover egg whites! That’s a win/win!
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
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.
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.
I LOVE hearing this! I am so glad you enjoy it.
Favorite lemon curd recipe-so easy
Thank you. I am so happy you enjoyed it.
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!
Thank you so much. You’ll love finding new ways to enjoy this lemon curd.
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!
Thank you…God bless you as well. I’m happy the recipe worked out for you! Your review means so much.
Super easy and Tasty. Will definitely make again!
I am glad you enjoyed it.
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. 🙂
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.
Try using Swerve Confectioners sugar. I used it and mine is super smooth.
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.
That awesome to hear! I am so glad you enjoyed it.
Could you explain the egg situation I always mess them up
I am sorry to hear that. I am not sure what situation you’re having with the eggs though.
I made your keto lemon tarts and this curd is absolutely delicious! I seriously can not believe this is keto.
I am so glad you love them! It’s truly a fail proof recipe.
No comment. I am speechless.
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.
Oh my gosh! So good!!! Thank you for the recipe.
You’re so welcome! I am glad you enjoyed it.
Yum! Very excited to make these for my Mom. They are her favourites. Can you suggest a substitute for the oat fiber? Thanks.
Looks go good!! Cant wait to make your lemon mascarpone dessert with this!!! Thank you!!
Looks great, hope you enjoy!
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!!!
Oh wow, yeah that would definitely change the consistency a bit. Glad to hear that you love it now 🙂
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.
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
Yep, followed it to the T. So you think it could maybe be the zest?
It’s certainly possible because you will have little chunks of zest in the curd, rather than the sweetener crystalizing.
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?
There really shouldn’t be if you are using Swerve confectioners. If you use granular, you will get those crystals.
I made this yesterday using powdered Swerve. After refrigerating overnight, I (sadly) have the same problem. The flavor is great though. 8/20/20
I could eat this all the time. Made spoon bread and drizzle some on it when I went to eat it
Awesome! I love it too 🙂
This is great, I love it.
Awesome, glad you love it!
Delicious
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.
Yes, granular will do that, which is why I prefer using confectioners. Love the ice cube tray idea, thanks for sharing!
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.
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 🙂
I love the flavor, but why does the erythritol test gritty in this recipe.
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.
I don’t understand the serving size, it says 12 servings? But it makes 1.5 cups., so a serving is one ounce?
1 servings is about 2 tablespoons.
I’m in uk are the measurements different for uk
Hi Julie,
You can click on the “metric” link in the recipe card and it will convert all the measurements for you.
This is the best stuff ever!!! I made one mistake. I didn’t double it!
So easy to make and just luscious.
Hi Teresa,
Glad to hear you liked it! It’s amazing how good it tastes for only cooking 5 minutes in a microwave! Enjoy 🙂