Molten Chocolate Mug Cake

Why You’ll Love This Recipe

I created this molten chocolate mug cake because I wanted a decadent, single-serving dessert that comes together in minutes without any complicated techniques. This recipe uses simple pantry ingredients and a microwave to deliver a perfectly gooey, chocolatey center with a tender, cake-like exterior. It is the ideal solution for a last-minute sweet craving or a quick treat for one.

Ingredients

• 3 tablespoons all purpose flour
• 2 tablespoons granulated sugar
• 1 tablespoon unsweetened cocoa powder
• 1/8 teaspoon baking powder
• 1 pinch salt
• 3 tablespoons milk
• 1 tablespoon vegetable oil
• 1/4 teaspoon vanilla extract
• 1 ounce dark chocolate, broken into small pieces

Directions

In a standard 12 ounce microwave safe mug, whisk together the flour, sugar, cocoa powder, baking powder, and salt until no lumps remain. Add the milk, vegetable oil, and vanilla extract to the mug. Stir with a small fork or spoon until the batter is smooth and fully combined. Scrape down the sides of the mug to ensure all dry ingredients are incorporated.

Gently press the pieces of dark chocolate into the center of the batter, pushing them down slightly so they are partially submerged. Do not stir after adding the chocolate. Place the mug in the microwave and cook on high power for 45 seconds to 1 minute. The cake should be set around the edges but still look slightly wet and jiggly in the center. The exact time will depend on your microwave wattage.

Let the mug cake cool in the microwave for 30 seconds before carefully removing it. The cake will continue to cook from residual heat, and the center will remain molten. Serve immediately directly from the mug.

Servings and Timing

This recipe makes one generous serving and takes approximately 5 minutes from start to finish, including 1 minute of active preparation and about 1 minute of cooking time.

Variations

You can easily customize this mug cake to suit your preferences. For a peanut butter version, add 1 tablespoon of creamy peanut butter to the batter and use a peanut butter cup in the center instead of dark chocolate. For a mint chocolate twist, add 1/4 teaspoon of peppermint extract and use a mint chocolate square in the center. To make it dairy free, substitute the milk with your favorite unsweetened non dairy milk like almond or oat milk, and use a dairy free chocolate piece.

Storage and Reheating

This mug cake is best enjoyed immediately after cooking for the optimal molten center. If you have leftovers, you can cover the mug with plastic wrap and store it at room temperature for up to 24 hours. To reheat, microwave on 50 percent power for 15 to 20 seconds, checking frequently to avoid overcooking. The center will likely be fully set after storage, so it will be more of a soft chocolate cake rather than a molten one.

FAQs

Can I use a different type of chocolate for the center?

Yes, you can use milk chocolate, semi sweet chocolate, or even a chocolate filled candy like a truffle or a chocolate caramel. Just make sure it is approximately 1 ounce in weight.

Why did my mug cake overflow in the microwave?

Overflowing usually happens if the mug is too small or the batter is cooked for too long. Always use a 12 ounce or larger mug and start with the minimum cooking time of 45 seconds. If your microwave is high wattage, reduce the time to 40 seconds.

Can I make this recipe without an egg?

This recipe is already egg free, making it a great option for those with egg allergies or vegan preferences when using non dairy milk and dairy free chocolate.

Can I double the recipe?

To double the recipe, use a larger microwave safe bowl or a 16 ounce mug. Cook in 30 second intervals, stirring the batter gently between each interval, until the edges are set but the center is still soft. The total cooking time will likely be around 1 minute 30 seconds to 2 minutes.

How do I know when the mug cake is done?

The mug cake is done when the top is set and the edges are firm, but the center still jiggles slightly when you gently shake the mug. A toothpick inserted near the edge should come out clean, but the center should be gooey.

Conclusion

I love how this molten chocolate mug cake delivers pure indulgence in just a few minutes. It is my go to recipe for a quick, satisfying dessert that feels special without any fuss. I hope you enjoy making and eating it as much as I do.

Molten Chocolate Mug Cake

Print Recipe

This molten chocolate mug cake is the ultimate single-serving dessert. Ready in just 5 minutes, it delivers a rich, gooey center every time.

• Author: CookingByNess
• Prep Time: 1 minute
• Cook Time: 1 minute
• Total Time: 2 minutes
• Yield: 1 serving
• Category: Dessert
• Method: Microwave
• Cuisine: American
• Diet: Vegetarian

Ingredients

– 3 tablespoons all purpose flour
– 2 tablespoons granulated sugar
– 1 tablespoon unsweetened cocoa powder
– 1/8 teaspoon baking powder
– 1 pinch salt
– 3 tablespoons milk
– 1 tablespoon vegetable oil
– 1/4 teaspoon vanilla extract
– 1 ounce dark chocolate, broken into small pieces

Instructions

1. In a 12 ounce microwave safe mug, whisk together the flour, sugar, cocoa powder, baking powder, and salt.
2. Add the milk, vegetable oil, and vanilla extract. Stir until the batter is smooth.
3. Press the dark chocolate pieces into the center of the batter. Do not stir.
4. Microwave on high for 45 seconds to 1 minute, until the edges are set and the center is jiggly.
5. Let cool for 30 seconds in the microwave, then serve immediately.

Notes

Cooking time varies by microwave wattage. Start with 45 seconds and add time as needed. Use a 12 ounce or larger mug to prevent overflow.