Keto Peanut Butter Mousse Recipe
Introduction
This Keto Peanut Butter Mousse is a rich and creamy dessert that satisfies your sweet tooth without the carbs. It combines smooth peanut butter with mascarpone and whipped cream for a luscious, low-carb treat perfect for any occasion.

Ingredients
- 1 cup mascarpone or cold cream cheese (240g)
- 1/4 cup powdered sweetener (40g, or 1/3 cup / 60g for a sweeter mousse)
- 3 tbsp smooth peanut butter (55g)
- 1 cup cold heavy cream (240g)
- 1/2 tsp vanilla extract
- Pinch of sea salt (if using unsalted peanut butter)
Instructions
- Step 1: In a mixing bowl, combine the mascarpone or cream cheese, powdered sweetener, peanut butter, and vanilla extract. If your peanut butter is unsalted, add a pinch of sea salt. Use an electric mixer to blend everything until smooth and well combined.
- Step 2: In a separate clean bowl, whip the cold heavy cream until it reaches just below stiff peaks.
- Step 3: Gently fold the whipped cream into the peanut butter mixture until fully incorporated and smooth. Transfer the mousse into serving glasses or bowls. Optionally, top with crumbled low-carb biscuits and a drizzle of peanut butter before serving.
Tips & Variations
- Use cream cheese instead of mascarpone for a tangier flavor.
- Adjust sweetness by using more or less powdered sweetener to suit your taste.
- For extra texture, sprinkle crushed nuts or sugar-free chocolate chips on top.
- Make sure all dairy ingredients are cold for easier whipping and better texture.
Storage
Store the mousse in an airtight container in the refrigerator for up to 3 days. Stir gently before serving if it separates slightly. This mousse is best enjoyed chilled and does not freeze well.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use natural peanut butter for this recipe?
Yes, natural peanut butter can be used, but it may separate more easily. Make sure to stir it well before mixing it into the mousse.
Is this mousse suitable for a dairy-free diet?
This recipe relies heavily on dairy products like mascarpone and heavy cream, so it is not suitable for a dairy-free diet. However, you could experiment with dairy-free cream cheese and coconut cream, but note that the texture and flavor will vary.
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Keto Peanut Butter Mousse Recipe
- Total Time: 10 minutes
- Yield: 4 servings 1x
- Diet: Low Carb
Description
This Keto Peanut Butter Mousse is a creamy, low-carb dessert perfect for keto enthusiasts seeking a rich and satisfying treat. Made with mascarpone or cream cheese, smooth peanut butter, and whipped heavy cream, it offers a luscious texture with a hint of vanilla and a subtle salty balance. Ideal for a quick and easy no-bake keto-friendly dessert.
Ingredients
Main Ingredients
- 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 peanut butter, smooth (55g)
- 1 cup heavy cream, cold (240g)
- 1/2 tsp vanilla extract
- Pinch sea salt (if your peanut butter is unsalted)
Instructions
- Combine base ingredients: Add the mascarpone or cream cheese, powdered sweetener, smooth peanut butter, and vanilla extract to a mixing bowl. Using an electric mixer, blend all ingredients until smooth and completely combined. If your peanut butter is unsalted, add a pinch of sea salt at this stage to balance the flavors.
- Whip the cream: In a separate, clean mixing bowl, whip the cold heavy cream using an electric mixer until it reaches just below stiff peaks—this means the cream should be thickened but still soft enough to fold easily.
- Fold whipped cream into base: Gently fold the whipped cream into the peanut butter and mascarpone mixture. Use a spatula to combine the two mixtures carefully until the mousse is smooth and homogenous, preserving the airy texture.
- Serve and garnish: Spoon or pipe the mousse into serving glasses. Optionally, top with crumbled low-carb biscuits of your choice and a drizzle of peanut butter for extra flavor and texture. Chill briefly if desired before serving.
Notes
- The mousse can be made sweeter by increasing the powdered sweetener to 1/3 cup (60g) according to taste preference.
- Ensure all dairy ingredients are cold to achieve the best whipping and mousse texture.
- For a lower-carb option, choose unsweetened peanut butter and adjust sweetener accordingly.
- This mousse keeps well refrigerated for up to 2 days in an airtight container.
- Optional garnishes can include low-carb biscuit crumbs and an additional peanut butter drizzle for presentation and flavor.
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Category: Dessert
- Method: No-Cook
- Cuisine: American
Keywords: keto peanut butter mousse, low carb dessert, keto dessert, peanut butter mousse, no bake keto mousse, keto creamy dessert, sugar free mousse

