Quick, Easy, and Totally Crave-Worthy — Ready in 5 Minutes
This fluffy peanut butter mug cake is the perfect single-serve dessert when you’re short on time but big on cravings. Made with just a few keto-friendly pantry staples, it delivers warm, nutty satisfaction — and even includes a creamy peanut butter topping for extra indulgence.
Course: Dessert
Prep Time: 3 minutes
Cook Time: 1.5 minutes
Total Time: 5 minutes
Servings: 1
Ingredients
For the Mug Cake
- 1 egg
- ⅛ teaspoon baking powder
- 2 tablespoons peanut butter (natural, no sugar added)
- 2 teaspoons sugar substitute (e.g., erythritol, monk fruit)
For the Topping
- 1 tablespoon peanut butter
- ½ teaspoon sugar substitute
- ½ teaspoon heavy whipping cream
Instructions
Step 1: Mix the Cake Batter
- In a microwave-safe mug, combine egg, baking powder, peanut butter, and sugar substitute.
- Stir thoroughly until smooth and well combined.
Step 2: Microwave the Cake
- Microwave on high for 1 minute. The cake should rise and be set in the center.
- Let cool slightly while you prepare the topping.
Step 3: Make the Topping
- In a small microwave-safe bowl, mix peanut butter, sugar substitute, and heavy cream.
- Microwave for 30 seconds, then stir until smooth and creamy.
Step 4: Assemble and Enjoy
- Spoon the warm topping over the mug cake.
- Enjoy immediately while warm and gooey.
Tips
- Use a wide mug to prevent overflow while microwaving.
- For extra indulgence, add a few sugar-free chocolate chips to the batter before microwaving.
- Try almond butter or sunflower seed butter as a variation.
Nutrition (Approximate, per serving)
- Calories: ~310 kcal
- Fat: ~26g
- Protein: ~13g
- Net Carbs: ~4g (depends on sweetener and peanut butter used)
A cozy, protein-packed treat that satisfies your dessert cravings — no oven required.
