Keto Peanut Butter Mousse
Peanut butter lovers, rejoice! This Keto Peanut Butter Mousse is a delightful treat that combines creamy texture with rich flavor. Perfect for dessert or a special occasion, this mousse is sugar-free and incredibly easy to whip up. Your guests will be amazed at how indulgent it tastes while fitting perfectly into a low-carb lifestyle.
Why You’ll Love This Recipe
- Quick and Easy: This mousse can be prepared in just five minutes, making it perfect for last-minute gatherings.
- Decadent Flavor: The rich peanut butter taste takes center stage, ensuring every bite is satisfying.
- Versatile Dessert: Whether served in fancy glasses or casual bowls, this mousse fits any occasion.
- Sugar-Free Delight: Enjoy the sweetness without guilt, thanks to the powdered sweetener.
- Impressive Presentation: Its smooth and fluffy texture makes it visually appealing for any dinner party.
Tools and Preparation
To create this delicious mousse, having the right tools is essential. Here’s what you’ll need to get started.
Essential Tools and Equipment
- Electric mixer
- Mixing bowls
- Measuring cups and spoons
- Spatula or folding tool
Importance of Each Tool
- Electric mixer: Saves time and effort when mixing ingredients to achieve the perfect consistency.
- Mixing bowls: Allows you to combine ingredients easily without spills or messes.
- Measuring cups and spoons: Ensures accurate measurements for consistent results every time.

Ingredients
This keto peanut butter mousse requires simple yet flavorful ingredients.
For the Mousse
- 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)
- 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
- In a mixing bowl, combine the mascarpone or cream cheese, powdered sweetener, smooth peanut butter, and vanilla extract.
- Use an electric mixer to blend until completely combined. If using unsalted peanut butter, add a pinch of sea salt.
Step 2: Whip the Cream
- In a separate clean bowl, whip the heavy cream until just below stiff peaks are formed.
Step 3: Combine Mixtures
- Gently fold the whipped cream into the peanut butter mixture using a spatula until fully combined and smooth.
- Pipe or spoon the mousse into serving glasses.
Step 4: Serve and Enjoy!
Top with optional crumbled low-carb biscuits of your choice and a drizzle of additional peanut butter if desired. Enjoy your delicious keto peanut butter mousse!
How to Serve Keto Peanut Butter Mousse
Serving keto peanut butter mousse can be a delightful experience. Here are some creative ideas to make your dessert stand out.
Individual Glasses
- Serve the mousse in small glasses for an elegant touch. Layer with crushed low-carb biscuits for added crunch.
Topped with Berries
- Add fresh berries on top of the mousse. Raspberries or strawberries provide a bright contrast and a burst of flavor.
Whipped Cream Garnish
- Top with additional whipped cream for extra decadence. A dollop adds a fluffy texture that complements the mousse beautifully.
Chocolate Drizzle
- Drizzle some sugar-free chocolate syrup over the mousse. This adds richness and makes it even more indulgent.
Party Platter
- Create a dessert platter featuring multiple flavors of mousse. Include keto-friendly toppings like nuts or coconut flakes for variety.
How to Perfect Keto Peanut Butter Mousse
To achieve the best results with your keto peanut butter mousse, follow these helpful tips.
- Use cold ingredients: Ensure your mascarpone or cream cheese and heavy cream are cold before mixing for a better texture.
- Choose smooth peanut butter: Smooth peanut butter blends effortlessly into the mixture, creating a creamy consistency.
- Whip carefully: Don’t over-whip the cream. Aim for soft peaks to maintain lightness in your mousse.
- Adjust sweetness: Taste the mixture before serving. If you prefer it sweeter, add more powdered sweetener gradually.
- Chill before serving: Let the mousse set in the refrigerator for at least 30 minutes prior to serving to enhance flavors.
Best Side Dishes for Keto Peanut Butter Mousse
Pairing side dishes with your keto peanut butter mousse can elevate your dessert experience. Here are some excellent options.
-
Nutty Granola
A crunchy, low-carb nut granola adds texture and complements the creamy mousse nicely. -
Coconut Chia Pudding
This light and refreshing pudding made from chia seeds and coconut milk pairs well with rich desserts. -
Fresh Fruit Salad
A mix of low-carb fruits like berries and melons offers a refreshing contrast to the dense mousse. -
Keto Brownies
Serve alongside fudgy keto brownies for an indulgent treat that satisfies chocolate cravings. -
Cheese Plate
A selection of cheeses can balance sweetness, making for an interesting flavor profile alongside the mousse. -
Chocolate Avocado Mousse
For those who love chocolate, this creamy avocado-based dessert is both rich and healthy, complementing peanut butter perfectly.
Common Mistakes to Avoid
Making keto peanut butter mousse is simple, but there are some common pitfalls to watch out for.
- Using soft cream cheese: Make sure to use cold mascarpone or cream cheese to achieve the right texture. Soft cream cheese can lead to a runny mousse.
- Overmixing the cream: Whipping the heavy cream too much will create butter instead of a light, fluffy mousse. Stop once stiff peaks form.
- Skipping the salt: If using unsalted peanut butter, remember to add a pinch of sea salt. This enhances the flavor and balances sweetness.
- Not chilling before serving: Allowing the mousse to chill enhances its flavor and texture. Don’t skip this step if you want a delightful dessert.
- Ignoring serving suggestions: Enhance your mousse by topping it with low-carb biscuits or additional peanut butter drizzle. This adds extra flavor and texture.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 3 days.
- Keep it chilled at all times to maintain texture and flavor.
Freezing Keto Peanut Butter Mousse
- You can freeze for up to 2 months in an airtight container.
- Thaw in the refrigerator overnight before serving.
Reheating Keto Peanut Butter Mousse
- Oven: Not recommended as this dessert is best served cold.
- Microwave: Avoid microwaving; it can alter the mousse’s texture.
- Stovetop: Also not suitable for reheating; enjoy it chilled directly from storage.
Frequently Asked Questions
Here are some common questions about making keto peanut butter mousse.
What is Keto Peanut Butter Mousse?
Keto peanut butter mousse is a low-carb, creamy dessert made with ingredients like mascarpone, heavy cream, and peanut butter. It’s rich in flavor while being sugar-free.
Can I use other nut butters?
Yes! Feel free to substitute almond or cashew butter for a different flavor profile while keeping it keto-friendly.
How do I make my mousse sweeter?
To make your keto peanut butter mousse sweeter, increase the powdered sweetener amount slightly until you reach your desired taste.
What if I don’t have mascarpone?
If mascarpone isn’t available, you can use cream cheese instead. Just ensure it’s cold for optimal results in your mousse.
How long does Keto Peanut Butter Mousse last?
When stored properly in the refrigerator, it can last up to 3 days. For longer storage, consider freezing it.
Final Thoughts
Keto peanut butter mousse is a deliciously creamy treat that’s perfect for any occasion. Its versatility allows you to customize toppings or even experiment with different nut butters. Don’t miss out on trying this simple yet impressive dessert that your guests will love!
Keto Peanut Butter Mousse
Indulge in the creamy delight of our Keto Peanut Butter Mousse, a luscious dessert that captures the rich flavor of peanut butter while keeping your carb count low. This sugar-free treat is perfect for any occasion, whether you’re hosting a dinner party or simply craving something sweet. With just a few simple ingredients, you can whip up this decadent mousse in minutes. Its light and fluffy texture will impress your guests, while the versatility of toppings—like fresh berries or a drizzle of sugar-free chocolate syrup—allows you to make it uniquely yours. Get ready to enjoy a guilt-free dessert that’s as satisfying as it is easy to prepare!
- Prep Time: 5 minutes
- Cook Time: N/A
- Total Time: 0 hours
- Yield: Serves 4
- Category: Dessert
- Method: No cooking required
- Cuisine: American
Ingredients
- 1 cup mascarpone cheese (or cream cheese)
- 1/4 cup powdered sweetener
- 3 tbsp smooth peanut butter
- 1 cup heavy cream
- 1/2 tsp vanilla extract
- Pinch of sea salt (optional)
Instructions
- In a mixing bowl, combine mascarpone cheese (or cream cheese), powdered sweetener, peanut butter, and vanilla extract. Use an electric mixer to blend until smooth. If using unsalted peanut butter, add a pinch of sea salt.
- In another bowl, whip the heavy cream until soft peaks form.
- Gently fold the whipped cream into the peanut butter mixture until fully combined and smooth.
- Spoon or pipe the mousse into serving glasses and chill for at least 30 minutes before serving.
Nutrition
- Serving Size: 1 mousse (120g)
- Calories: 330
- Sugar: 2g
- Sodium: 150mg
- Fat: 30g
- Saturated Fat: 15g
- Unsaturated Fat: 14g
- Trans Fat: 0g
- Carbohydrates: 6g
- Fiber: 2g
- Protein: 6g
- Cholesterol: 70mg