No-Bake Keto Chocolate Peanut Butter Mug Cake
A quick and satisfying single-serving keto dessert combining rich cocoa and creamy peanut butter, ready in just 5 minutes using a mug and microwave. This american-inspired keto (keto, low carb) ready in about 5 minutes layers almond flour, unsweetened cocoa powder, natural peanut butter 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 320 calories and feeds 1, 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.
Ingredients
- 3 tbsp almond flour
- 1 tbsp unsweetened cocoa powder
- 2 tbsp natural peanut butter
- 1 tbsp erythritol sweetener
- 1/4 tsp baking powder
- 2 tbsp unsweetened almond milk
- 1/4 tsp vanilla extract
- a pinch salt
Instructions
- Step 1: In a microwave-safe mug, combine 3 tbsp almond flour, 1 tbsp unsweetened cocoa powder, 1 tbsp erythritol sweetener, 1/4 tsp baking powder, and a pinch of salt. Stir well to blend the dry ingredients.
- Step 2: Add 2 tbsp natural peanut butter, 2 tbsp unsweetened almond milk, and 1/4 tsp vanilla extract to the mug. Mix thoroughly until a smooth batter forms without lumps.
- Step 3: Microwave the mug on high for 90 seconds. The cake should rise and be set but moist inside. Let cool for 1 minute before enjoying directly from the mug.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does No-Bake Keto Chocolate Peanut Butter Mug Cake take to make?
Total time is about 5 minutes (3 min prep + 2 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 Chocolate Peanut Butter Mug Cake?
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 Chocolate Peanut Butter Mug Cake?
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 Chocolate Peanut Butter Mug Cake for a different number of people?
The recipe is written for 1 servings. Multiply each ingredient by (your serving target / 1). 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 Chocolate Peanut Butter Mug Cake keto?
Yes — this recipe is tagged keto, low carb based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
