Chocolate Mug Cake

Chocolate Mug Cake is the kind of dessert that turns an ordinary evening into something a little sweeter, without leaving a sink full of dishes behind. This single-serve cake cooks right in the mug, with rich cocoa flavor, a soft fudgy crumb, and pockets of melted chocolate throughout. A little brown sugar keeps the center moist, while melted butter adds a fuller, bakery-style flavor.

The best part is how simple it is. Mix the batter, scatter a few chocolate chips over the top, and microwave just until the surface is set. After a short rest, the center finishes gently from the residual heat instead of becoming dry or rubbery. Add a spoonful of whipped cream if you like, then grab a spoon while the chocolate is still warm.

Recipe Yield: 1 serving

INGREDIENTS

1/4 cup all-purpose flour
2 tbsp unsweetened cocoa powder
2 tbsp semisweet chocolate chips, divided
1/4 cup whole milk
2 tbsp unsalted butter, melted
1/2 tsp vanilla extract
2 tbsp granulated sugar
1 tbsp packed light brown sugar
1/4 tsp baking powder
1/8 tsp kosher salt
Whipped cream, for serving (optional)

INSTRUCTIONS

1. Mix the dry ingredients:
In a 12–14 oz microwave-safe mug, stir together the flour, cocoa powder, granulated sugar, brown sugar, baking powder, and salt until evenly combined and no cocoa lumps remain.

2. Finish the batter:
Add the milk, melted butter, and vanilla. Stir with a fork just until smooth, scraping the bottom and corners of the mug so no dry flour remains. Fold in 1 tbsp chocolate chips, then scatter the remaining chips over the top.

3. Microwave the cake:
Microwave on high for 60 seconds. If the center still looks wet, continue in 10-second bursts until the top is just set with a slightly soft center, usually 70–90 seconds total in a 1000-watt microwave.

4. Rest and serve:
Let the mug cake stand for 1 minute so the center finishes setting gently. Serve warm with whipped cream, if desired.

HELPFUL TIPS TO PERFECT THIS RECIPE

• Use the right mug: A 12–14 oz microwave-safe mug, preferably one that isn’t unusually narrow, gives the cake room to rise and helps it cook more evenly.
• Measure the flour lightly: Too much flour is one of the easiest ways to make a mug cake dry. Spoon the flour into the measuring cup and level it rather than packing it down.
• Stop before it looks completely dry: The cake continues cooking during its 1-minute rest. The top should be just set while the center still looks slightly soft, not wet or liquid.
• Adjust for your microwave: Microwave wattage and mug shape affect cooking time considerably. Start conservatively, then use 10-second bursts rather than risking an overcooked, rubbery cake.
• Enjoy it warm: Mug cakes are at their best shortly after cooking, while the crumb is soft and the chocolate chips are still melted. This is not a dessert that benefits from sitting around.