No-Bake Keto Peanut Butter Chocolate Mousse

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A luscious, two-ingredient mousse combining smooth peanut butter and dark chocolate for a quick keto dessert. This american-inspired desserts (keto, low carb) ready in about 15 minutes layers natural peanut butter (unsweetened), sugar-free dark chocolate chips, heavy whipping cream into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 280 calories and feeds 4, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 5 min Serves 4 American cuisine 280 cal/serving
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Ingredients

Instructions

  1. Step 1: In a small saucepan over low heat, combine 1/2 cup sugar-free dark chocolate chips and 1/4 cup heavy whipping cream, stirring constantly until the chocolate is fully melted and smooth.
  2. Step 2: Remove from heat and stir in 1/2 cup natural peanut butter and 1/2 tsp vanilla extract until the mixture is homogeneous and creamy.
  3. Step 3: Transfer the mixture to a chilled mixing bowl and whip with an electric mixer on medium speed for 2-3 minutes until light and fluffy.
  4. Step 4: Spoon the mousse into 4 small serving cups and refrigerate for at least 1 hour to set before serving.

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Frequently asked questions

How long does No-Bake Keto Peanut Butter Chocolate Mousse take to make?

Total time is about 15 minutes (10 min prep + 5 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover No-Bake Keto Peanut Butter Chocolate Mousse?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in No-Bake Keto Peanut Butter Chocolate Mousse?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale No-Bake Keto Peanut Butter Chocolate Mousse for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is No-Bake Keto Peanut Butter Chocolate Mousse keto?

Yes — this recipe is tagged keto, low carb, gluten free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.