This Microwave Mug Sponge Cake is your ticket to a warm, fluffy dessert in just minutes. With a golden, tender crumb and a hint of vanilla sweetness, it’s like a mini celebration in a mug. Perfect for those moments when you need a quick treat without the fuss, this cake is ready in under 12 minutes—ideal for busy days or late-night cravings. The light, airy texture melts in your mouth, while the comforting aroma fills your kitchen effortlessly. Whether topped with a dollop of cream or a sprinkle of berries, it’s a delightful indulgence that feels homemade and heartwarming.
What makes this recipe truly special is its simplicity and speed. In just 10 minutes of prep and 2 minutes of cooking, you’ll have a dessert that’s both satisfying and nostalgic. The soft, spongy cake pairs beautifully with your favorite toppings, from chocolate drizzle to powdered sugar. It’s a versatile treat that’s as easy to make as it is delicious to eat. Perfect for beginners or seasoned bakers, this mug cake is proof that great flavors don’t need hours in the oven. Treat yourself to a cozy, homemade dessert that’s ready before you know it.
What You’ll Need for Microwave Mug Sponge Cake
- 2 tablespoons (1oz/30g) butter (unsalted recommended)
- 1 large egg (room temperature for best results)
- 2 tablespoons milk (any type works, including plant-based)
- 1 teaspoon pure vanilla extract
- 1 teaspoon almond extract (optional, for extra flavor)
- ¼ cup (50g) granulated sugar
- 6 tablespoons flour (all-purpose works perfectly)
- 1/4 teaspoon baking powder
- Tiny pinch of salt
How to Make Microwave Mug Sponge Cake
- Melt the butter: Place the butter in a large microwave-safe mug. Microwave for 20 to 30 seconds until fully melted.
- Add the egg: Crack the egg into the mug and whisk it into the butter using a fork until well combined.
- Mix wet ingredients: Stir in the milk, vanilla extract, almond extract (if using), and sugar. Mix until smooth.
- Add dry ingredients: Add the flour, baking powder, and salt. Mix with a fork until the batter is smooth and no lumps remain.
- Chill the batter: Cover the mug and place it in the fridge. This step is optional but helps the cake rise better.
- Microwave the cake: When ready to serve, microwave the mug for 1 minute and 20 seconds. The cake should be firm and springy to the touch.
- Top and enjoy: Add whipped cream and fresh berries on top, and enjoy your quick and delicious sponge cake!
Topping Ideas to Elevate Your Mug Cake
While whipped cream and fresh berries are classic choices, why not get creative? Try drizzling with chocolate sauce or caramel syrup for a decadent treat. For a crunchy twist, sprinkle with crushed nuts or granola. If you’re feeling indulgent, a scoop of vanilla ice cream pairs perfectly with the warm cake!
Quick Storage and Reheating Tips
If you’re not ready to enjoy your mug cake right away, store the batter in the fridge for up to 24 hours. When you’re ready, simply microwave as directed. Leftover cake? Cover the mug with plastic wrap and reheat for 15-20 seconds to restore its fluffy texture.
Fun Recipe Variations to Try
Switch things up by adding chocolate chips or cocoa powder for a chocolatey version. For a citrus twist, replace the almond extract with lemon zest or orange juice. Feeling adventurous? Stir in a tablespoon of peanut butter or Nutella for a rich, nutty flavor.
Time-Saving Hacks for Busy Bakers
Pre-measure your dry ingredients in advance and store them in a small jar for a quick mix-and-go option. Use a microwave-safe mug with a lid to skip the step of covering it with plastic wrap. These small tweaks can shave off precious minutes when you’re craving a sweet treat!
Common Questions Answered
Wondering if you can skip the egg? Yes! Substitute it with 2 tablespoons of applesauce or 1 tablespoon of yogurt for a similar texture. Can you double the recipe? Absolutely—just use a larger mug and microwave for an additional 30-40 seconds. Happy baking!
Microwave Mug Sponge Cake
Ingredients
- 2 tablespoons butter 1oz/30g
- 1 large egg*
- 2 tablespoons milk
- 1 teaspoon pure vanilla extract
- 1 teaspoon almond extract optional
- 1/4 cup granulated sugar 50g
- 6 tablespoons flour
- 1/4 teaspoon baking powder
- Tiny pinch salt
Instructions
- Place the butter in a large mug and microwave it for 20 to 30 seconds until melted.
- Add the egg* and whisk it in with a fork.
- Stir in the milk, vanilla, almond and sugar.
- Add the flour, baking powder and salt. Mix the batter with a fork until smooth.
- Cover and place in the fridge. When ready to serve microwave for 1 minute and 20 seconds.
- Top with whipped cream and fresh berries and enjoy!
