
Why You’ll Love This Recipe
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Fast and Convenient: Ready in under 5 minutes using just a microwave.
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Rich Flavor: Classic chocolate and peanut butter combination.
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Single Serving: Perfect portion control and no leftovers.
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Simple Ingredients: Made with pantry staples and easy to customize.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
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4 tablespoons all-purpose flour
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2 tablespoons cocoa powder
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2 tablespoons sugar
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1/4 teaspoon baking powder
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Pinch of salt
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3 tablespoons milk
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2 tablespoons peanut butter
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1 tablespoon vegetable oil or melted butter
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1/2 teaspoon vanilla extract
Directions
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Mix Dry Ingredients: In a microwave-safe mug, whisk together flour, cocoa powder, sugar, baking powder, and salt.
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Add Wet Ingredients: Stir in milk, peanut butter, oil, and vanilla extract until smooth and well combined.
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Microwave: Cook in the microwave on high for 1 to 1 1/2 minutes, or until the cake has risen and is set in the center. Cooking times may vary depending on your microwave.
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Cool Slightly: Let the cake cool for a minute or two before eating.
Servings and Timing
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Servings: 1
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Preparation Time: 3 minutes
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Cooking Time: 1-2 minutes
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Total Time: 5 minutes
Variations
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Add Chocolate Chips: Stir in a tablespoon of chocolate chips for extra melty goodness.
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Top with Whipped Cream: Add a dollop of whipped cream or ice cream.
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Use Peanut Butter Swirl: Drop spoonfuls of peanut butter on top before microwaving.
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Make It Vegan: Use plant-based milk and oil, and substitute sugar with maple syrup.
Storage/Reheating
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Storage: Best eaten immediately; leftovers can be stored covered in the fridge for 1 day.
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Reheating: Warm in the microwave for 20-30 seconds before serving.
FAQs
Can I use almond flour instead of all-purpose flour?
Yes, but the texture will be denser.
Can I double the recipe for two servings?
Yes, but use separate mugs and cook individually.
How do I prevent the cake from overflowing?
Use a larger mug and avoid filling more than halfway.
Can I use natural peanut butter?
Yes, but stir well before measuring.
Is this recipe gluten-free?
Not with all-purpose flour; use gluten-free flour to make it so.
How moist is the cake?
Soft and moist with a fluffy texture.
Can I add nuts?
Yes, chopped peanuts or walnuts work well.
Can I make this without cocoa powder?
Yes, but it won’t have the chocolate flavor.
Can I bake this in an oven?
Yes, bake at 350°F (175°C) for about 15 minutes in a small ramekin.
Are these mug cakes kid-friendly?
Yes, quick and fun for kids to make and eat.
Conclusion
Chocolate Peanut Butter Mug Cake is a fast, delicious, and satisfying single-serving dessert that combines two classic flavors in a moist, fluffy cake. Perfect for a quick treat or late-night craving, it’s simple to make and sure to please any chocolate and peanut butter lover.

Chocolate Peanut Butter Mug Cake
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- Author: Ava
- Total Time: 5 minutes
- Yield: 1 serving
- Diet: Vegetarian
Description
Chocolate Peanut Butter Mug Cake is a quick and easy single-serving dessert that combines rich chocolate and peanut butter flavors into a moist, fluffy cake, ready in minutes using a microwave.
Ingredients
- 4 tablespoons all-purpose flour
- 2 tablespoons cocoa powder
- 2 tablespoons sugar
- 1/4 teaspoon baking powder
- Pinch of salt
- 3 tablespoons milk
- 2 tablespoons peanut butter
- 1 tablespoon vegetable oil or melted butter
- 1/2 teaspoon vanilla extract
Instructions
In a microwave-safe mug, whisk together flour, cocoa powder, sugar, baking powder, and salt.
- Stir in milk, peanut butter, oil, and vanilla extract until smooth and well combined.
- Microwave on high for 1 to 1 1/2 minutes, until cake rises and is set in the center. Adjust time as needed for your microwave.
- Let cake cool for a minute or two before eating.
Notes
- Add a tablespoon of chocolate chips for extra melty chocolate.
- Top with whipped cream or ice cream for indulgence.
- Drop spoonfuls of peanut butter on top before microwaving for a swirl effect.
- Use plant-based milk and oil and substitute sugar with maple syrup for a vegan version.
- Use gluten-free flour for gluten-free mug cake.
- Use almond flour for a denser texture.
- Use a larger mug and fill no more than halfway to prevent overflow.
- Natural peanut butter works but stir well before measuring.
- Can bake in an oven at 350°F (175°C) for about 15 minutes in a ramekin.
- Add chopped nuts like peanuts or walnuts for crunch.
- Omitting cocoa powder removes chocolate flavor.
- Prep Time: 3 minutes
- Cook Time: 1-2 minutes
- Category: Dessert, Snack
- Method: Microwaving
- Cuisine: American
Nutrition
- Serving Size: 1 mug cake
- Calories: 320 kcal
- Sugar: 18 g
- Sodium: 150 mg
- Fat: 18 g
- Saturated Fat: 5 g
- Unsaturated Fat: 10 g
- Trans Fat: 0 g
- Carbohydrates: 30 g
- Fiber: 3 g
- Protein: 7 g
- Cholesterol: 30 mg