Microwave Chocolate Mug Cake Recipe
Introduction
This Microwave Chocolate Mug Cake is a quick and easy treat perfect for satisfying your chocolate cravings in just minutes. With simple ingredients and minimal cleanup, it’s ideal for a single serving dessert anytime.

Ingredients
- 2 tablespoons butter
- 3 tablespoons all-purpose flour
- 2 tablespoons granulated sugar
- 1 tablespoon unsweetened cocoa powder
- 1 tablespoon dark chocolate chips (optional – semi-sweet chocolate chips)
- ½ teaspoon baking powder
- 1 large egg yolk (use yolk only)
- 1 tablespoon water
- 1 teaspoon pure vanilla extract
Instructions
- Step 1: Add the butter to a microwave-safe mug and microwave for 45 seconds, or until melted.
- Step 2: Add the flour, sugar, cocoa powder, chocolate chips, baking powder, egg yolk, water, and vanilla extract to the mug. Mix thoroughly with a fork until smooth and combined.
- Step 3: Microwave the mug on high for 70 to 90 seconds. The cake should rise and pull away from the sides of the mug, with a slightly dry top.
- Step 4: Allow the mug cake to cool for about 5 minutes before enjoying.
- Step 5: Optional toppings include whipped cream, fudge or butterscotch topping, a scoop of ice cream, or a sprinkle of powdered sugar.
Tips & Variations
- Make sure to use only the egg yolk for a rich, moist texture without risk of overflow.
- For a dairy-free version, substitute butter with coconut oil or a plant-based margarine.
- Add a pinch of salt to enhance the chocolate flavor if desired.
- Try mixing in chopped nuts or a dash of cinnamon for added texture and warmth.
Storage
This mug cake is best enjoyed fresh but can be stored in an airtight container in the refrigerator for up to 2 days. Reheat in the microwave for 15-20 seconds to warm before serving.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use a whole egg instead of just the yolk?
Using only the yolk ensures a denser, moister cake. Adding the whole egg may cause the mug to overflow during microwaving.
What type of mug is best for this recipe?
Use a microwave-safe mug that holds at least 8 ounces to give the cake enough room to rise without spilling.
PrintMicrowave Chocolate Mug Cake Recipe
A quick and easy Microwave Chocolate Mug Cake recipe that delivers a rich, moist chocolate dessert in just minutes. Perfect for a single serving, this cake is made with simple pantry ingredients and cooked right in your microwave, making it ideal for when you need a fast treat without the mess of baking.
- Prep Time: 3 minutes
- Cook Time: 1.5 minutes
- Total Time: 5 minutes
- Yield: 1 serving 1x
- Category: Dessert
- Method: Microwaving
- Cuisine: American
Ingredients
Main Ingredients
- 2 tablespoons butter
- 3 tablespoons all-purpose flour
- 2 tablespoons granulated sugar
- 1 tablespoon unsweetened cocoa powder
- 1 tablespoon dark chocolate chips (optional – semi-sweet chocolate chips)
- ½ teaspoon baking powder
- 1 large egg yolk
- 1 tablespoon water
- 1 teaspoon pure vanilla extract
Instructions
- Melt the Butter: Add the butter to a microwave-safe mug and microwave for 45 seconds until fully melted.
- Mix Ingredients: Add the flour, sugar, cocoa powder, chocolate chips (if using), baking powder, egg yolk, water, and vanilla extract to the melted butter in the mug. Mix thoroughly with a fork until the batter is smooth and well combined.
- Microwave the Cake: Place the mug back in the microwave and cook on high for 70 to 90 seconds. The cake is done when it pulls away from the sides of the mug and appears somewhat dry on top.
- Cool Before Eating: Let the cake cool in the mug for about 5 minutes to set before eating, as it will be very hot.
- Add Optional Toppings: Enhance your mug cake with whipped cream, fudge sauce, butterscotch topping, a scoop of ice cream, or a light sprinkle of powdered sugar for extra indulgence.
Notes
- Do not overcook the cake as it can become rubbery; start checking at 70 seconds.
- For a dairy-free version, substitute butter with a plant-based spread.
- Use only the egg yolk as the recipe specifies to keep the texture moist.
- Microwave power varies; adjust cooking time accordingly.
- Letting the cake cool slightly helps it firm up and improves the texture.
Keywords: microwave mug cake, chocolate mug cake, quick dessert, single serving cake, easy chocolate cake, microwave dessert

