Delicious Keto Blueberry Lemon Mousse Recipe: Perfect for a Low-Carb Diet

Welcome to the World of Keto Desserts!

Are you craving a dessert that tantalizes your taste buds without the guilt? Look no further than this Keto Blueberry Lemon Mousse! This dessert is not just a treat for your palate but also a perfect fit for your keto lifestyle. Imagine the burst of fresh blueberries and the zest of lemon in a velvety mousse that’s both refreshing and satisfying. It’s a heavenly combination that proves you don’t need to sacrifice flavor for health. Dive into this delightful recipe and discover how to enjoy sweets the keto way!

With just a few simple ingredients and no cooking required, this low-carb dessert is as easy to make as it is delicious. It’s perfect for those on a ketogenic diet, looking for a quick and delightful treat to satisfy their sweet tooth while keeping carbs in check. So let’s get ready to whip up some magic with this Keto Blueberry Lemon Mousse that’s sure to become a staple in your dessert repertoire!

Keto Blueberry Lemon Mousse

The Story Behind This Luscious Keto Blueberry Lemon Mousse

This Keto Blueberry Lemon Mousse is more than just a dessert; it’s a labor of love and a testament to the versatility of keto-friendly ingredients. As a passionate advocate for the keto lifestyle, I’ve always been on the lookout for recipes that bring joy to the table without breaking the carb bank. This mousse is the result of that quest, combining the antioxidant-rich goodness of blueberries with the invigorating zest of lemon, all wrapped up in a creamy, dreamy texture.

Blueberries are a keto superfood, offering a host of health benefits while keeping carbs to a minimum. They are packed with vitamins, fiber, and antioxidants, making them a great choice for a low-carb diet. The lemon zest and juice not only add a refreshing tang but also aid digestion and enhance flavor without adding extra sugar or carbs. And let’s not forget the heavy whipping cream, which provides the fat necessary for keto and creates that luxurious mousse consistency we all love.

By using powdered erythritol, a natural sugar substitute, we keep the sweetness without the sugar spike. Xanthan gum, a gluten-free thickener, ensures the mousse sets to perfection. This dessert is not just a treat for your taste buds but also a nod to the health-conscious. It’s a dessert that fits seamlessly into your keto diet, providing pleasure without compromise.

Preparing Keto Blueberry Lemon Mousse

Perfecting the Mousse: Tips and Tricks

Creating the perfect Keto Blueberry Lemon Mousse is an art, but with these tips and tricks, you’ll be able to master it in no time. The key to a great mousse is in the texture. When whipping the heavy cream, start at a lower speed and gradually increase to prevent splattering. Once you see soft peaks starting to form, that’s your cue to add the xanthan gum. Sprinkle it in slowly while continuing to whip to stiff peaks, but be careful not to overbeat, or the cream may separate.

Folding in the blueberry lemon mixture is another crucial step. Use a gentle hand and a rubber spatula to fold the mixture into the whipped cream. This ensures that you don’t deflate the air you’ve so carefully incorporated into the cream. The goal is a light and airy mousse with a uniform color, indicating that the flavors are well blended.

Remember, patience is a virtue when it comes to setting the mousse. Give it at least an hour in the refrigerator, but if you prefer a firmer texture, feel free to leave it for longer. The wait will be worth it when you’re rewarded with a perfectly set mousse that holds its shape and delivers a burst of flavor with every spoonful.

Keto Blueberry Lemon Mousse Ready to Serve

Variations to Spice Up Your Mousse

Coconut Lime Twist

For a tropical take on this mousse, replace the lemon zest and juice with lime and use full-fat coconut milk instead of heavy whipping cream. The coconut will add a creamy, exotic flavor that pairs wonderfully with the tang of lime, creating a dessert that’s both keto-friendly and reminiscent of a tropical getaway.

Berry Bonanza

Why stop at blueberries? Create a mixed berry mousse by incorporating raspberries, strawberries, and blackberries. Each berry brings its unique flavor and health benefits, resulting in a mousse that’s not only colorful but also bursting with berry goodness. Just be sure to adjust the carb count accordingly.

Chocolate Dream

For the chocolate lovers, add unsweetened cocoa powder to the whipped cream mixture and a few drops of stevia for extra sweetness. The rich chocolate flavor combined with the blueberry and lemon creates a decadent mousse that’s sure to satisfy any chocolate craving while staying keto-compliant.

Substitutions for Dietary Needs and Preferences

Whether you have dietary restrictions or simply prefer to experiment with different ingredients, there are substitutions you can make to tailor this Keto Blueberry Lemon Mousse to your needs.

If you’re avoiding dairy, opt for full-fat coconut milk instead of heavy whipping cream. Keep in mind that this will change the flavor profile slightly, but it will still result in a delicious, creamy mousse.

For those who don’t have powdered erythritol on hand, other keto-friendly sweeteners like monk fruit sweetener or stevia can be used. Just be sure to adjust the quantity to taste, as the sweetness level can vary between different sweeteners.

If you’re out of xanthan gum or prefer not to use it, you can try using a small amount of unflavored gelatin to help the mousse set. Dissolve the gelatin in a little bit of water before folding it into the whipped cream mixture.

Frequently Asked Questions

Q: Can I use frozen blueberries for this recipe?
A: Yes, you can use frozen blueberries if fresh ones aren’t available. Just be sure to thaw and drain them well to avoid excess liquid in your mousse.

Q: How long can I store the Keto Blueberry Lemon Mousse?
A: This mousse can be stored in the refrigerator for up to 3 days. Be sure to cover it to prevent it from absorbing any fridge odors.

Q: Can I make this mousse vegan?
A: To make a vegan version, use full-fat coconut milk and a vegan-friendly sweetener. Note that this will alter the taste and texture slightly.

Q: Is this dessert freezer-friendly?
A: While you can freeze the mousse, it may affect the texture upon thawing. For best results, enjoy it fresh or store it in the refrigerator.

Q: Can I add protein powder to this recipe?
A: Yes, you can add a scoop of your favorite keto-friendly protein powder to the mousse. It’s a great way to boost the protein content without compromising the flavor.

Keto Blueberry Lemon Mousse

This Keto Blueberry Lemon Mousse is a velvety, tangy dessert that satisfies your sweet tooth without the carbs. Fresh blueberries and zesty lemon combine to create a light, refreshing treat perfect for any time of the day.
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Prep Time 15 minutes
Cook Time 0 minutes
Total Time 15 minutes
Course Desserts
Cuisine Keto, Low-Carb
Servings 4 servings
Calories 215 kcal


  • Blender or food processor
  • Large mixing bowl
  • Electric mixer
  • Measuring cups and spoons
  • Microplane or zester
  • Citrus juicer
  • rubber spatula


  • 1 cup fresh blueberries 150g
  • 1 tablespoon lemon zest 6g
  • 2 tablespoons fresh lemon juice 30ml
  • 1 cup heavy whipping cream 240ml
  • ¼ cup powdered erythritol 48g
  • ½ teaspoon vanilla extract 2.5ml
  • ¼ teaspoon xanthan gum 0.6g


  • Begin by washing the blueberries and patting them dry. Zest the lemon until you have 1 tablespoon of zest, then juice the lemon for 2 tablespoons of juice.
  • In a blender or food processor, combine the blueberries, lemon zest, and lemon juice. Blend until the mixture is smooth.
  • In a large bowl, pour in the heavy whipping cream and add the powdered erythritol and vanilla extract. Whip the mixture with an electric mixer until it starts to thicken.
  • While continuing to whip, gradually sprinkle in the xanthan gum and keep beating until stiff peaks form, ensuring not to overbeat.
  • Gently fold the blueberry lemon mixture into the whipped cream until well combined and the color is uniform.
  • Spoon the mousse into serving dishes and refrigerate for at least 1 hour to set.
  • Serve chilled, garnished with additional blueberries or a sprinkle of lemon zest if desired.


You can adjust the sweetness of the mousse by adding more or less erythritol according to your taste preferences.
If you prefer a thicker mousse, refrigerate it for a longer time before serving.
For a dairy-free version, you can substitute the heavy whipping cream with full-fat coconut milk. Keep in mind this will alter the taste slightly.
This dessert is a wonderful way to enjoy the flavors of blueberry and lemon without breaking your keto diet goals. Enjoy it as an after-dinner treat or a decadent mid-day snack!


Calories: 215kcalCarbohydrates: 6gProtein: 2gFat: 22gFiber: 2gNet Carbs: 4g
Keyword Blueberry Lemon Dessert, Keto Blueberry Lemon Mousse, Keto Mousse, low carb dessert
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