Desserts

Coffee Mug Cake

Coffee Mug Cake
Savor the deep, robust flavors of espresso melded with rich cocoa in this incredibly moist mug cake. In just minutes, you'll have a café-quality dessert that's perfectly portioned and blissfully warm, complete with a gooey chocolate heart.

Prep

5m

Cook

2m

Serves

1


1 Ingredients

Qty Ingredient
4 tbsp 32 g All-purpose flour
3 tbsp 36 g Granulated sugar
1 tbsp 5 g Unsweetened cocoa powder
1.5 tsp 3 g Instant espresso powder
1/4 tsp 1 g Baking powder
3 tbsp 45 ml Milk
2 tbsp 30 ml Neutral vegetable oil
1/4 tsp 1.25 ml Vanilla extract
1 tbsp 15 g Dark chocolate chips

2 Method

1

Step 1. In a standard 12oz microwave-safe mug, whisk together the flour, sugar, cocoa powder, baking powder, and espresso powder until no lumps remain.

2

Step 2. Pour in the milk, oil, and vanilla extract. Whisk with a small fork or whisk until the batter is smooth and well combined.

3

Step 3. Drop the chocolate chips into the center of the batter; do not stir them in, as they will sink during cooking to create a molten center.

4

Step 4. Microwave on high for 90 seconds to 2 minutes, or until the top is set but still slightly springy. Start at 90 seconds as microwaves vary in power.

5

Step 5. Let the cake rest for 2 minutes before serving. This allows the steam to distribute and the crumb to set properly.

💡 Chef's Tips

  • ·

    For the best texture, use a wide, shallow mug rather than a tall, narrow one to ensure even heating.

  • ·

    To make it extra decadent, top with a dollop of whipped cream or a scoop of vanilla bean ice cream.

  • ·

    Do not overbake! If the cake looks slightly wet on top when you take it out, that's okay; it will finish setting as it rests.

  • ·

    You can swap the espresso powder for 1 tablespoon of strong cooled coffee and reduce the milk by the same amount.

? FAQ

Can I make this recipe vegan?
Yes, simply use a plant-based milk like almond or soy and ensure your chocolate chips are dairy-free.
Why did my mug cake turn out rubbery?
Rubbery texture is usually caused by overcooking or adding too much oil. Try reducing the microwave time by 10 seconds next time.
Can I use regular coffee instead of espresso powder?
Yes, but for the best flavor, instant espresso powder provides a more concentrated coffee punch without thinning the batter too much.
Can I bake this in an oven instead?
Yes, you can bake it in an oven-safe ramekin at 350°F (175°C) for about 12-15 minutes, though the microwave is much faster.

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