Craving something warm and sweet but don’t want to bake an entire cake? This Banana Mug Cake is ready in just a few minutes and uses simple ingredients you probably already have at home.
It’s soft, moist, naturally sweet from ripe banana, and made right inside one mug—so there’s almost no cleanup!
Ingredients
For 1 large mug cake:
- 1 small very ripe banana
- 1 large egg
- 4 tablespoons all-purpose flour
- 2 tablespoons milk
- 1/2 teaspoon baking powder
- 1 teaspoon honey or maple syrup, optional
- 1/4 teaspoon cinnamon
- 1/4 teaspoon vanilla extract, optional
- 2–3 banana slices for topping
How to Make Banana Mug Cake
1. Mash the banana
Place the ripe banana directly into a large microwave-safe mug.
Use a fork to mash it very well until it becomes creamy with only a few small pieces remaining.
2. Add the wet ingredients
Add the egg, milk, honey, and vanilla.
Mix everything together until well combined.
3. Add the dry ingredients
Add the flour, baking powder, and cinnamon.
Stir gently until you have a smooth batter. Avoid overmixing, as this can make the cake dense.
The mug should only be about half to two-thirds full so the cake has room to rise.
4. Add banana on top
Place a few thin banana slices on top of the batter.
They become beautifully soft and caramelized while the cake cooks.
5. Microwave
Microwave on high for approximately 1 minute 30 seconds to 2 minutes.
Start checking around 90 seconds because microwave power can vary.
The cake is ready when the top looks set and springs back slightly when touched.
6. Serve warm
Let the mug sit for about 1 minute after microwaving—it will be very hot.
Dig in with a spoon while the cake is still warm, fluffy, and moist inside.
Optional Toppings
Make it even better with:
- Peanut butter
- Greek yogurt
- Honey
- Maple syrup
- Chopped walnuts
- Chocolate chips
- Extra cinnamon
- Fresh banana slices
Tips for the Best Mug Cake
Use a very ripe banana with brown spots for the sweetest flavor and softest texture.
Choose a large microwave-safe mug to prevent the batter from overflowing.
And most importantly, don’t overcook it. An extra 20–30 seconds can quickly turn a soft mug cake dry.
Why You’ll Love This Recipe
This banana mug cake takes less than 5 minutes from start to finish, requires only one mug, and makes the perfect quick breakfast, afternoon snack, or late-night dessert.
Warm, fluffy banana cake straight from the microwave—with almost no dishes to wash. 🍌✨
Save this recipe for the next time you have one lonely ripe banana sitting on your counter!
