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    Home / Recipes / Dessert / Keto Lemon Cheesecake Mousse

    Keto Lemon Cheesecake Mousse

    August 6, 2019 by Keto Cooking Christian 15 Comments

    This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases, see Disclosure.
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    Rich and creamy cheesecake mousse gets a fresh punch of lemon flavor in this quick and easy to make Keto friendly dessert!

    Keto/Low Carb Lemon Cheesecake Mousse

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    This recipe calls for this 5 Minute Keto Lemon Curd in this recipe and it gives the mousse the perfect amount of lemon flavor, without being completely overpowering.  

    If you prefer using a stovetop method to make your curd, you can try this sugar free traditional Lemon Curd recipe instead.

    This lemony Keto friendly mousse is a great way to increase your healthy fats, with 33g of fat per serving!  You can also try my other mousse desserts that are also loaded with healthy fats: Salted Caramel Cheesecake Mousse, Silky Chocolate Avocado Mousse, Easy Pumpkin Cheesecake Mousse, Nutella Chocolate Mousse and Strawberry Coconut Cream Mouse.

    This Keto Lemon Mousse could not be easier to make, so it's a great last minute Keto dessert, made in under 10 minutes!  Depending on how lemony you like your desserts, you can adjust the amount of lemon curd that you use in this recipe.

    What's in Lemon Cheesecake Mousse

    • Cream cheese
    • Heavy cream
    • 5 Minute Lemon Curd
    • Swerve confectioners

    *Exact measurements are listed in the recipe card below.

    How to Make Low Carb Lemon Cheesecake Mousse

    Whip the heavy cream in a bowl to soft peaks.  

    Lemon Cheesecake Mousse in Mixing Bowl

    In a separate bowl, add the cream cheese and whip using a hand mixer.

    Lemon Cheesecake Mousse Batter Mixed

    Add in the lemon curd and Swerve Confectioners, then continue mixing.  Mix in the whip cream until well combined.

    Lemon Cheesecake Mousse Mix in Mixing Bowl

    Chill in the fridge or freezer for about 10 minutes before serving.

    Lemom Cheesecake Mousse PIN

    If you love lemon desserts, you've got to try this Keto Lemon Souffle!

    What are the Carbs in Lemons?

    The lemon curd used in this lemon mousse recipe uses ½ cup lemon juice to make an entire batch. For ½ cup lemon juice, there are 10 net carbs.

    This recipe only uses ⅔ cup for the entire recipe which means each serving of mousse only has around 3 net carbs.

    Low Carb/Keto Lemon Cheesecake Mousse in dessert cup next to whisk

    Curious About Lemon Nutrition Facts?

    Not only are lemons a great way to add tangy flavor to your recipes, they are very rich in vitamin C. In addition, they’re a decent source of potassium and vitamin B6.

    According to this article found on Healthline, "Drinking lemon water may decrease stress, enhance immune function, help prevent anemia, reduce your risk of kidney stones, and protect against several diseases. "

    Close Up of Lemon Cheesecake Mousse

    How to Get the Perfect Lemon Flavor

    I used ⅔ cup of the lemon curd in this recipe and I feel that it has a great balance of sweetness and tartness. But if you prefer less tart, use ½ cup of the curd. If you like more lemon flavor, use ¾ cup instead. 

    If you’re not sure, start with ½ cup of the curd, mix everything together and taste the mousse to see how you like it. That way you can add more curd, if the lemon flavor isn’t strong enough for you.

    5 Minute Microwave Lemon Curd - Keto and Low Carb

    Tips for Making the Best No Bake Cheesecake Style Lemon Mousse

    Mixing up the Mousse

    Be sure not to over mix your heavy cream or you will end up making butter!  Making butter is honestly just that easy, in fact I have made butter several times using my food processor.  But for this mousse, you simply want whipped cream, not butter.

    For mixing, I find my hand mixer works perfectly.  Alternatively, you can use your stand mixer instead or even whisk by hand.

    Substitutions for Low Carb Lemon Mousse

    If you don't have Swerve Confectioners, you can use powdered erythritol instead.  If you happen to have Swerve Granular on hand, you can powder it yourself using a coffee/spice grinder.

    If you're not a big fan of cream cheese or if you want to reduce the carbs, you can substitute the cream cheese with Mascarpone cheese. Mascarpone has the same consistency as cream cheese, but is incredibly low in carbs and has a milder flavor.

    I actually use it in so many of my recipes, sweet and savory, including fat bombs, mousse, cupcake frosting and I even use it to thicken gravy and sauce!  It's one of my very favorite ingredients, because it is so versatile!

    Different Ways to Serve Keto Cheesecake Mousse

    You can serve up this mousse any way you like and it will be perfect. I served in martini glasses, because I think it gives an elegant touch. I also garnished with some freshly grated lemon zest and a slice of lemon.

    These also make great low carb mini desserts for a party!  You can serve your guests this mousse in little shot glasses.  You can easily pipe them out using the tip of your choice and garnish with a fresh berry, sprig of mint, or lemon zest and a lemon slice.

    Can You Use These as Fat Bombs?

    Absolutely!  You can also prepare smaller portions to use as fat bombs and freeze in small containers.  Once the mousse fully sets, you can scoop out little balls using a cookie scooper and freeze them for later.  If you do this, you can get at least 15 or more servings and that will give you around 15g of fat and just over 1 carb each, not to shabby!

    Other Keto and Low Carb Uses for Lemon Curd

    You can make my Lemon Mascarpone Tart, Lemon Meringue Cupcakes, or my Mini Lemon Curd Tarts.

    More Keto Lemon Desserts

    • Mini Lemon Curd Tarts
    • Lemon Cupcakes
    • Lemon Bars
    • Lemon Meringue Cupcakes
    • Lemon Mascarpone Tart

    If you'd like to know more about baking on Keto, this article, Keto Baking Made Easy, is loaded with tips and info that you'll find helpful. You might also check out my Keto Sweet Treats eBook that has 50 amazing Keto dessert recipes, all with color pics, macros and more! I'm offering it at 50% off when you subscribe to my free weekly emails here.

    20 Easy Keto Recipes Cover Thumbnail

    FREE 20 EASY KETO RECIPES EBOOK

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    Keto/Low Carb Lemon Cheesecake Mousse

    Keto Lemon Cheesecake Mousse

    Sweet cheesecake mousse gets a fresh punch of lemon flavor in this easy to make Keto friendly dessert!
    4.75 from 4 votes
    Print Pin SaveSaved! Rate
    Prep Time 3 mins
    Cook Time 5 mins
    Total Time 8 mins
    Author: Julianne
    Course: Dessert
    Calories: 343
    Servings: 6

    INGREDIENTS

    • 8 ounces cream cheese, at room temperature
    • 1 cup heavy cream, cold
    • ⅔ cup 5 Minute Lemon Curd, see notes
    • ⅓ cup Swerve confectioners

    INSTRUCTIONS

    • Whip the heavy cream in a bowl to soft peaks. In a separate bowl, add the cream cheese and whip using a hand mixer.
    • Add in the lemon curd and Swerve confectioners, then continue mixing.
    • Mix in the whip cream until well combined. Chill in the fridge or freezer for about 10 minutes before serving.

    RECIPE NOTES

    I used ⅔ cup of the lemon curd in this recipe and I feel that it has a great balance of sweetness and tartness.  But if you prefer less tart, use ½ cup of the curd.  If you like more lemon flavor, use ¾ cup instead.  
    If you're not sure, start with ½ cup of the curd, mix everything together and taste the mousse to see how you like it.  That way you can add more curd, if the lemon flavor isn't strong enough for you.
    I also use my 5 Minute Lemon Curd in this recipe, but if you prefer the stovetop method for your curd, you can use my traditional Lemon Curd recipe instead.
    Share on Instagramand tag @ketocookingchristian

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

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    Nutrition Facts
    Keto Lemon Cheesecake Mousse
    Amount Per Serving
    Calories 343 Calories from Fat 297
    % Daily Value*
    Fat 33g51%
    Saturated Fat 22g138%
    Carbohydrates 3g1%
    Sugar 2g2%
    Protein 5g10%
    * 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, Allulose, or Monk Fruit.

    NOTE: Recipes using Swerve/Erythritol can be substituted 1:1 with a Monk fruit/Allulose blend.

    Recipes You Might Like:

    • Keto Lemon Lush
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    Filed Under: 30 Minutes or Less, Cheesecakes, Dessert, Posts, Recipes Tagged With: best keto desserts, best keto recipes, best low carb desserts, best low carb recipes, easy keto desserts, easy keto recipes, easy low carb recipes, gluten free recipes, keto, keto diet, keto lemon desserts, keto lemon mousse, keto recipes, ketogenic diet, low carb lemon mousse, low carb recipes

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      Recipe Rating




    1. Ann Marie

      June 19, 2022 at 3:47 pm

      Can this be frozen for later

      Reply
      • Keto Cooking Christian

        June 20, 2022 at 5:16 pm

        I would not attempt that. The dairy breaks down and changes the texture.

        Reply
    2. Kelly J

      May 26, 2022 at 12:49 pm

      5 stars
      Made this last night and it is outstanding! I only had 6 ounces of cream cheese so I added 2 oz of full fat ricotta and it was delicious. I used powdered swerve and for some reason it still crystallized (not sure why?) in the lemon curd but did not affect the flavor. Will definitely make again but will use a different powdered sweetener to see if that helps

      Reply
      • Keto Cooking Christian

        May 29, 2022 at 1:36 pm

        I am so glad you enjoyed it. I am not sure why it crystallized...but I am thankful the taste was still great.

        Reply
    3. Twila

      May 09, 2022 at 2:49 pm

      5 stars
      I would like to know the serving size. I see it serves 6. Thank you for this and the lemon curd recipe to go with it. I made them both.
      I used Monf fruit confectioners sweetener and it works just great.
      Another question what watts is your microwave? As 5 minutes at 1200 watts seemed a bit much?

      Reply
      • Keto Cooking Christian

        May 10, 2022 at 12:43 pm

        The serving size is about 1/2 cup each. Monk fruit sounds perfect too! I have a standard microwave and I've been making the lemon curd in it exactly as the recipe states, for years now. It honestly turns out perfect every time.

        Reply
    4. Summer

      September 10, 2021 at 7:47 pm

      Is this a consistency that would work for a light frosting? Is there anything you could suggest to help it be a light frosting if it is not already?

      Thanks 🙂

      Reply
      • Keto Cooking Christian

        September 11, 2021 at 11:39 am

        I am not sure about using mousse as a frosting. However, check out the Lemon Curd Layered Cake recipe on this site. The cake has a lemon frosting that is light and creamy.

        Reply
    5. Carol

      October 30, 2020 at 9:31 am

      Is it ok to make the mouse a day in advance

      Reply
      • Keto Cooking Christian

        October 30, 2020 at 10:58 am

        Yes, you sure can!

        Reply
    6. Janira Casanova-Santos

      January 19, 2020 at 10:12 pm

      4 stars
      This came out great. I didnt have confectioners so I took my granular monkfruit sweetener and ran it through my food processor until it was a powdered consistency.

      Reply
    7. Daniela

      November 18, 2019 at 12:53 am

      5 stars
      Wish I never made this! It’s so addictively yummy I’ve almost eaten it all. And as for the 5 min lemon curd.... will never make it on the stove top again, amazing, was so quick and easy.

      Reply
      • Keto Cooking Christian

        November 18, 2019 at 10:12 am

        Glad you enjoyed it and I rarely make my curd stovetop anymore either!

        Reply
    8. Karen M

      October 11, 2019 at 11:44 pm

      I’ve tried this recipe three times. The first time it worked great and was delicious! The next two times the sugar crystallized and it became grainy and over sweet. I can’t figure out what I’ve done wrong. It’s driving me crazy because it worked and was so good. Any suggestions?

      Reply
      • Keto Cooking Christian

        October 12, 2019 at 4:52 pm

        Hi Karen,
        The only thing I can imagine could have happened, is if you changed sweeteners to a granular sweetener instead of confectioners or powdered. That's the only thing that I know of to cause graininess.

        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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