Banana mug cake is a moist, fluffy, and incredibly quick single-serve cake you can make in under 5 minutes. This easy banana cake in a mug is especially delicious with melty chocolate chips on top. It’s an ideal cozy breakfast, snack, or dessert when you want banana bread in a hurry.
Why Should You Make This Recipe
Mug cakes are simple, adaptable, and perfect whenever you want a single portion of something warm and sweet. This banana mug cake requires pantry staples and comes together in minutes. It’s great for mornings, late-night cravings, or when you want a quick dessert without making a full loaf.
- Fast and easy. You can mix the batter in about 2 minutes and microwave it for around 2 minutes. Let it cool a minute and you have a delicious banana cake in under 5 minutes.
- Single-serve or shareable. The recipe makes one mug cake; double the ingredients and cook in two mugs for two servings.
Ingredients
This banana mug cake uses just a few common ingredients. Prepare the following to make one serving:
Gather a very ripe banana, an egg (optional), butter, milk, light brown or granulated sugar, a pinch of salt, vanilla extract, flour, and optional chocolate chips.
Substitutions
If you don’t have an ingredient on hand, these substitutions keep the recipe flexible:
- Banana: Use a ripe banana with brown spots for best flavor.
- Egg: Optional—adds a slightly richer, more cake-like texture. Omit if you prefer egg-free.
- Butter: Unsalted butter is preferred; salted or dairy-free butter works too.
- Sugars: Use light brown or granulated sugar, or a refined-sugar-free alternative if you prefer.
- Milk: Any milk or plant-based milk works fine.
- Flour: All-purpose, oat flour, or almond flour all work—choose based on the texture you want.
- Mix-ins: Chocolate chips, peanut butter chips, or chopped nuts are great additions.
Variations
- Toppings: Try mini peanut butter cups, chopped nuts, mini chocolate chips, sprinkles, crushed pretzels, or a scoop of ice cream.
- Healthier version: Swap sugars for a refined-sugar-free sweetener, use oat or almond flour, and omit the butter for a lighter version.
How To Make
Follow these quick steps to prepare a banana mug cake.
- Prepare the mug: Use an 8 oz (240 ml) or larger microwave-safe mug. Melt 1 tablespoon (14 g) unsalted butter in the mug for 20–30 seconds.
- Mix wet ingredients: Mash 1 medium ripe banana in the mug. Lightly beat 1 large egg in a separate bowl and stir into the mashed banana and melted butter (skip the egg if you prefer an egg-free version).
- Add remaining ingredients: Stir in 1 tablespoon (15 ml) milk, 1/2 teaspoon vanilla extract, 3 tablespoons (38 g) light brown or granulated sugar, 1/2 teaspoon baking powder, a pinch (1/8 tsp) of salt, and 3 tablespoons (23 g) flour (all-purpose, oat, or almond). Mix until smooth, then fold in 1–2 tablespoons chocolate chips if using.
4. Cook: Microwave the mug cake for 90–120 seconds (1½–2 minutes). The cake should puff and look set on top. If it’s undercooked or liquid remains at the bottom, microwave in additional 20-second increments until done.
5. Finish: Let the cake cool for about 1 minute, then top with extra chocolate chips, a drizzle of peanut butter, sliced banana, or a scoop of ice cream.
How To Serve and Store
- Serve: Serve warm with your favorite toppings—more chocolate chips, nut butter, chopped nuts, or ice cream make great additions.
- Store: This recipe is best eaten immediately. Storing will change the texture, so enjoy it right after cooking for the best flavor and texture.
M’s Expert Tips
- Mix in order: Combine the wet ingredients first, then add the dry for a smooth, lump-free batter.
- Consistency: The batter should resemble banana bread batter—thick but stirrable.
- Microwave wattage: Adjust cooking time based on your microwave. Increase by 20–30 seconds if under 1100 W; start shorter if you have a high-wattage microwave and add time as needed.
- Toppings: Add whatever you like—ice cream, nut butter, extra chocolate chips, or peanut butter cups all work well.
FAQs
Yes. Preheat the oven to 350°F (177°C). Place batter-filled mugs or ramekins on a baking sheet and bake for about 10–15 minutes, until set.
You can double the ingredients and prepare two mugs. Microwave them separately to ensure even cooking.
A rubbery texture usually means it was overcooked or had too much fat. Start with shorter cook times (30–45 seconds) and add short increments until done to avoid overcooking.
More Banana Recipes to Try
- Banana Brownies
- Banana Chocolate Chip Cookies
- Banana Mini Muffins
- Banana Bars with Cream Cheese Frosting
- Banana French Toast
Banana Mug Cake Recipe
Equipment
- 1 12 oz. or larger microwave-safe mug or ramekin
- 1 fork or small whisk
- 1 microwave
Ingredients
- 1 tablespoon (14 g) unsalted butter
- 1 medium ripe banana
- 1 large egg, lightly beaten (optional)
- 1 tablespoon (15 ml) milk
- ½ teaspoon vanilla extract
- 3 tablespoons (38 g) light brown or granulated sugar
- ½ teaspoon baking powder
- ⅛ teaspoon salt
- 3 tablespoons (23 g) all-purpose flour, oat flour, or almond flour
- 1–2 tablespoons chocolate chips (optional)
Instructions
- Melt 1 tablespoon butter in an 8 oz (240 ml) or larger microwave-safe mug for 20–30 seconds.
- Mash the ripe banana in the mug. Add the lightly beaten egg and mix thoroughly (omit the egg if you prefer an egg-free version).
- Stir in milk, vanilla, sugar, baking powder, salt, and flour until smooth. Fold in chocolate chips if using.
- Microwave for 90–120 seconds until the cake has risen and the top looks set. If undercooked, microwave in 20-second increments until done. Cool 1 minute, top as desired, and enjoy.
Notes
Microwave wattage: If your microwave is below 1100 W, you may need a longer cook time (add 20–30 seconds). If it’s higher wattage, start with 90 seconds and add time as needed.
Serving suggestion: Top with extra chocolate chips, a drizzle of nut butter, sliced banana, or ice cream for an indulgent finish.
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