Peanut butter fans are in for a treat with this keto peanut butter mousse. It’s super smooth and fluffy, making it an impressive dessert for any occasion, from casual family dinners to elegant gatherings. This delicious mousse is not only easy to prepare but also sugar-free, ensuring it fits perfectly into your low-carb lifestyle.
Why You’ll Love This Recipe
- Quick and Easy: With just five minutes of prep time, you can whip up this delightful dessert without any hassle.
- Rich Flavor: The combination of mascarpone and peanut butter creates a creamy texture that is indulgent yet healthy.
- Versatile Serving Options: Serve it in individual glasses or as a topping for other desserts like cakes or pancakes.
- Impressive Presentation: Its light and airy texture makes it look stunning, perfect for impressing guests at dinner parties.
- Low Carb Delight: Enjoy this tasty treat without worrying about excess carbs, as it fits right into your keto diet.
Tools and Preparation
Before diving into the recipe, gather the necessary tools to make your keto peanut butter mousse effortlessly.
Essential Tools and Equipment
- Electric mixer
- Mixing bowls
- Measuring cups and spoons
- Spatula
- Serving glasses
Importance of Each Tool
- Electric mixer: Ensures that your cream is whipped to perfection, giving the mousse its lightness.
- Mixing bowls: Provides enough space for combining ingredients easily without spills.
- Spatula: Useful for folding the whipped cream gently into the peanut butter mixture to maintain its fluffy texture.
Ingredients
For the Mousse Base
- 1 cup mascarpone (or cream cheese, cold (240g))
- 1/4 cup powdered sweetener (40g) (use 1/3 cup / 60g for a sweeter mousse)
- 3 tbsp / 55g peanut butter (smooth)
For the Whipped Cream
- 1 cup heavy cream (cold (240g))
- 1/2 tsp vanilla extract
- pinch sea salt (if your peanut butter is unsalted)
How to Make Keto Peanut Butter Mousse
Step 1: Prepare the Peanut Butter Mixture
- Add the mascarpone or cream cheese, powdered sweetener, peanut butter, and vanilla extract to a mixing bowl.
- Use an electric mixer to combine these ingredients until smooth. If using unsalted peanut butter, add a pinch of sea salt.
Step 2: Whip the Heavy Cream
- In a clean bowl, pour in the cold heavy cream.
- Whip with an electric mixer until it reaches just below stiff peaks.
Step 3: Combine and Serve
- Gently fold the whipped cream into the peanut butter mixture using a spatula until well combined and smooth.
- Pipe or spoon the mousse into serving glasses. Optionally top with crumbled low carb biscuits and a drizzle of extra peanut butter for added flair.
Enjoy your creamy and delicious keto peanut butter mousse! Perfect as a satisfying dessert or an elegant treat at any occasion.
How to Serve Keto Peanut Butter Mousse
Keto peanut butter mousse is a delightful dessert that can be served in many creative ways. Whether you are hosting a dinner party or enjoying a quiet evening at home, these serving suggestions will elevate your experience.
In Individual Cups
- Serve the mousse in small cups for an elegant presentation. Top with whipped cream and crushed low-carb cookies for added texture.
With Fresh Berries
- Pair the mousse with a side of fresh raspberries or strawberries. The tartness of the berries balances the richness of the mousse beautifully.
Topped with Nuts
- Add a sprinkle of chopped nuts, like almonds or pecans, on top for a satisfying crunch. This enhances both the flavor and visual appeal of your dessert.
As a Layered Dessert
- Create a layered dessert by alternating layers of mousse with layers of low-carb cake or biscuit in a glass. This will impress your guests with its beautiful presentation.
Dressed Up with Chocolate
- Drizzle melted sugar-free chocolate over the mousse before serving. This adds an extra indulgent touch to your Keto peanut butter mousse.

How to Perfect Keto Peanut Butter Mousse
To ensure your keto peanut butter mousse turns out perfect every time, follow these helpful tips:
- Use cold ingredients: Start with cold mascarpone and heavy cream. This helps achieve a light and fluffy consistency in your mousse.
- Don’t overmix: When folding in the whipped cream, do it gently. Overmixing can deflate the airiness you’ve created.
- Adjust sweetness: Taste as you go! If you prefer a sweeter mousse, feel free to add more sweetener gradually.
- Chill before serving: Letting the mousse chill in the fridge for an hour enhances its flavor and texture.
- Experiment with flavors: Feel free to add different extracts like almond or coconut for a unique twist on the traditional flavor.
- Garnish creatively: Consider garnishing with unsweetened cocoa powder or shredded coconut for visual appeal and added flavor.
Best Side Dishes for Keto Peanut Butter Mousse
To complement your keto peanut butter mousse, consider serving it alongside these delectable side dishes. They pair well and enhance the overall dining experience.
- Keto Almond Flour Cookies – Soft and chewy cookies made from almond flour that are low in carbs and perfect for dipping into the mousse.
- Coconut Flour Brownies – Rich brownies made from coconut flour provide a decadent contrast to the lightness of the mousse.
- Chocolate Avocado Pudding – A creamy, rich pudding that is also keto-friendly and adds another layer of chocolatey goodness.
- Chia Seed Pudding – A refreshing pudding that can be flavored with vanilla or cocoa; it’s nutritious and complements the richness of the mousse.
- Low-Carb Cheesecake Bites – Mini cheesecake bites that are creamy and satisfying, pairing nicely with the peanut butter flavor.
- Keto Fruit Salad – A mix of low-carb fruits such as berries and melon tossed together; it’s refreshing and lightens up dessert time.
- Nutty Granola Clusters – Crunchy granola clusters made from nuts and seeds; they provide a wonderful crunch to serve alongside your creamy mousse.
- Sugar-Free Jello Cups – Light and fruity jello cups that add fun colors and flavors without adding carbs.
Common Mistakes to Avoid
When making keto peanut butter mousse, it’s easy to overlook some details. Here are common mistakes and how to avoid them.
- Using warm ingredients: Always ensure that your mascarpone or cream cheese is cold. This helps achieve that fluffy texture.
- Not whipping the cream enough: Whip the heavy cream until just below stiff peaks. Over-whipping can lead to a grainy texture.
- Skipping the salt: If your peanut butter is unsalted, don’t forget to add a pinch of sea salt. It enhances the flavors beautifully.
- Overmixing: When folding the whipped cream into the peanut butter mixture, be gentle. Overmixing can deflate the whipped cream and affect texture.
- Ignoring sweetness levels: Taste your mousse before serving. Adjust sweetness according to your preference by adding more sweetener if needed.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 3 days for optimal freshness.
- Make sure to keep it in the fridge immediately after serving.
Freezing Keto Peanut Butter Mousse
- You can freeze this mousse for up to 1 month.
- Use freezer-safe containers or silicone molds for better storage.
Reheating Keto Peanut Butter Mousse
- Oven: Not recommended as reheating can change its texture.
- Microwave: Use very low power for a short time if necessary, but it’s best enjoyed chilled.
- Stovetop: Avoid reheating on stovetop; serve cold for best taste and texture.
Frequently Asked Questions
Here are answers to some common questions about keto peanut butter mousse.
What is Keto Peanut Butter Mousse?
Keto peanut butter mousse is a rich, creamy dessert made with keto-friendly ingredients, perfect for satisfying sweet cravings while staying within carb limits.
How can I make my Keto Peanut Butter Mousse sweeter?
You can adjust sweetness by adding more powdered sweetener. Start with small amounts and taste as you go until it meets your preference.
Can I use different nut butters?
Yes! Feel free to experiment with almond or cashew butter for a unique flavor twist in your keto peanut butter mousse.
Is this recipe suitable for meal prep?
Absolutely! Keto peanut butter mousse can be prepared ahead of time and stored in the fridge, making it perfect for meal prep.
Final Thoughts
Keto peanut butter mousse is not only incredibly delicious but also versatile. You can customize it by adding toppings like berries or nuts, making it suitable for various occasions. Try this easy recipe and enjoy a guilt-free dessert that will impress everyone!

Keto Peanut Butter Mousse
- Total Time: 0 hours
- Yield: 6 servings 1x
Description
Indulge in the creamy, dreamy goodness of Keto Peanut Butter Mousse—a guilt-free dessert that satisfies your sweet cravings without compromising your low-carb lifestyle. This easy-to-make mousse combines rich mascarpone and smooth peanut butter to create a fluffy texture that’s perfect for any occasion, from casual family dinners to elegant gatherings. With just a few simple ingredients and five minutes of prep time, you can whip up this decadent treat that is sugar-free and keto-friendly. Elevate your dessert game with this delightful mousse that’s sure to impress!
Ingredients
- 1 cup mascarpone (or cream cheese, cold)
- 1/4 cup powdered sweetener (adjust to taste)
- 3 tbsp peanut butter (smooth)
- 1 cup heavy cream (cold)
- 1/2 tsp vanilla extract
- Pinch of sea salt (if using unsalted peanut butter)
Instructions
- In a mixing bowl, beat together mascarpone, powdered sweetener, peanut butter, and vanilla until smooth.
- In a separate bowl, whip the heavy cream until just below stiff peaks.
- Gently fold the whipped cream into the peanut butter mixture until well combined.
- Spoon or pipe the mousse into serving glasses and chill before serving.
- Prep Time: 5 minutes
- Cook Time: None
- Category: Dessert
- Method: None
- Cuisine: Keto
Nutrition
- Serving Size: 1/2 cup (120g)
- Calories: 295
- Sugar: 2g
- Sodium: 150mg
- Fat: 28g
- Saturated Fat: 15g
- Unsaturated Fat: 12g
- Trans Fat: 0g
- Carbohydrates: 6g
- Fiber: 1g
- Protein: 5g
- Cholesterol: 75mg