If you love cheesecake but want something lighter and quicker, this Keto Lemon Cheesecake Mousse is the perfect dessert. It combines the tangy freshness of lemon curd with the creamy richness of cheesecake, all in a low-carb, sugar-free version that takes less than 10 minutes to make. With only a handful of ingredients, this luscious mousse delivers all the indulgence of traditional cheesecake without baking, crusts, or carbs.
This mousse is light, creamy, and smooth, with the perfect balance of sweetness and tartness. It’s ideal for anyone following a keto or low-carb diet and can be prepared ahead for entertaining. The bright lemon flavor adds a refreshing twist, making it an excellent choice for spring and summer desserts or as a quick treat any time of year.
Why You’ll Love It
Quick and effortless — ready in just 8 minutes.
Creamy and rich — tastes like cheesecake in mousse form.
Keto and sugar-free — sweetened with Swerve confectioners.
Customizable — easily adjust the tartness by changing the lemon curd amount.
Make-ahead friendly — stores beautifully in the fridge.
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
Start by whipping the heavy cream. Pour 1 cup of cold heavy cream into a mixing bowl and whip it to soft peaks using a hand mixer or stand mixer. The cream should be thick but not stiff. Set aside in the refrigerator to keep it cold.
In another bowl, add 8 ounces of softened cream cheese. Beat it with a hand mixer on medium speed until smooth and fluffy. This step is crucial to ensure there are no lumps in your mousse.
Add the lemon curd and Swerve confectioners to the cream cheese. Continue mixing until everything is fully combined and smooth. The mixture should be thick, creamy, and slightly tangy.
Now fold in the whipped cream gently using a spatula. Fold slowly to maintain the light texture. Mix until the mousse becomes uniform in color and texture. Avoid overmixing, as you want to keep it airy.
Once combined, spoon the mousse into dessert glasses, small ramekins, or serving bowls. Chill in the fridge or freezer for about 10 minutes before serving. This allows the mousse to set slightly and enhances the texture.
Recipe Notes and Flavor Adjustments
If you prefer a balanced lemon flavor, use ⅔ cup of lemon curd. For a milder version, use ½ cup. If you love a bold lemon tang, go with ¾ cup. It’s best to start with ½ cup, taste the mixture, and add more curd if desired.
The lemon curd you use can significantly affect the final taste. This recipe works perfectly with my 5-Minute Lemon Curd, which is keto-friendly and made in the microwave. However, you can also use a traditional stovetop lemon curd recipe if you prefer. Both versions provide the same silky, tangy base.
Serving Ideas
Serve the mousse chilled in small cups or glass jars. Top with sugar-free whipped cream, a twist of lemon zest, or fresh berries such as raspberries or blueberries for contrast. You can also sprinkle some shredded coconut or crushed keto cookies on top for added texture.
For a layered dessert, alternate spoonfuls of mousse with lemon curd or keto granola in a clear glass for a parfait-style presentation. This adds a beautiful visual appeal and makes the dessert party-ready.
Storage and Make-Ahead Tips
This mousse can be made ahead and stored in airtight containers in the refrigerator for up to 3 days. It’s a great dessert to prepare in advance for gatherings or meal prep. If you want to store it longer, freeze it for up to 1 month. Thaw in the fridge overnight before serving. The texture may be slightly firmer but still delicious.
Pro Tips for Best Results
Use cold heavy cream — it whips faster and forms soft peaks easily.
Soften cream cheese at room temperature before mixing to avoid lumps.
Fold the whipped cream gently into the mixture to preserve its fluffiness.
Chill before serving for a smoother, creamier texture.
Taste as you go — adjust the lemon curd to achieve your preferred flavor balance.
FAQs
Can I make this dairy-free?
Yes. Replace cream cheese with dairy-free cream cheese and heavy cream with coconut cream.
Can I use store-bought lemon curd?
Yes, but make sure it’s sugar-free or low in carbs to keep the recipe keto-friendly.
Can I use another sweetener?
Absolutely. Monk fruit, erythritol, or allulose will also work, but powdered sweeteners blend best.
Can I use this as a cake filling?
Yes! This mousse makes an excellent filling for keto cakes or cupcake toppings.
What if I want it thicker?
Chill it longer or whip the heavy cream to firmer peaks before folding.
Serving Suggestions
Serve with lemon zest, mint leaves, or whipped cream for a finishing touch. Pair it with a cup of espresso or herbal tea for a refreshing and satisfying end to your meal.
Simple Keto Lemon Cheesecake Mousse
This Keto Lemon Cheesecake Mousse delivers everything you love about cheesecake — the creamy texture, the sweet-tart flavor, and the indulgent satisfaction — without sugar, carbs, or baking. It’s elegant enough for guests yet easy enough for an everyday dessert.
Prep Time: 3 minutes
Cook Time: 5 minutes
Total Time: 8 minutes
Servings: 4
Calories: 343 kcal per serving
Ingredients
8 oz cream cheese, room temperature
1 cup cold heavy cream
⅔ cup 5-Minute Lemon Curd
⅓ cup Swerve confectioners
Instructions
Whip heavy cream to soft peaks and set aside.
In another bowl, beat cream cheese until smooth and fluffy.
Add lemon curd and Swerve, mix until fully combined.
Fold in whipped cream gently until creamy and smooth.
Chill for 10 minutes in fridge or freezer before serving.
Notes
Use ½ cup lemon curd for a milder flavor or ¾ cup for extra tang.
Make sure cream cheese is soft and heavy cream is cold before whipping.
Use sugar-free lemon curd to keep it keto.
Nutrition Facts (Per Serving)
Calories: 343
Fat: 33g
Saturated Fat: 22g
Carbohydrates: 3g
Sugar: 2g
Protein: 5g
