Microwave Keto Vanilla Berry Mug Cake
A fluffy, single-serving keto vanilla mug cake with fresh berries, ready in under 5 minutes for an instant low-carb dessert. This keto-inspired keto (keto, low carb) ready in about 5 minutes layers almond flour, erythritol sweetener, baking powder 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 210 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
- 2 tbsp erythritol sweetener
- 1/4 tsp baking powder
- 1 large egg
- 2 tbsp unsweetened almond milk
- 1/2 tsp vanilla extract
- 2 tbsp fresh raspberries
- 1 tbsp unsalted butter
Instructions
- Step 1: In a microwave-safe mug, whisk together 3 tbsp almond flour, 2 tbsp erythritol sweetener, and 1/4 tsp baking powder until combined.
- Step 2: Add 1 large egg, 2 tbsp unsweetened almond milk, 1/2 tsp vanilla extract, and 1 tbsp melted unsalted butter to the mug. Whisk thoroughly until the batter is smooth and uniform.
- Step 3: Gently fold in 2 tbsp fresh raspberries, taking care not to break them up too much.
- Step 4: Microwave the mug on high for 90 seconds, or until the cake has risen and is set but still moist in the center.
- Step 5: Let the mug cake cool for 2 minutes before enjoying directly from the mug or tipped onto a plate.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Microwave Keto Vanilla Berry 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 Microwave Keto Vanilla Berry 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 Microwave Keto Vanilla Berry 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 Microwave Keto Vanilla Berry 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 Microwave Keto Vanilla Berry 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.
