
This quick banana mug cake transforms your ripe banana into a warm, comforting treat in just 5 minutes. Perfect for those moments when you crave something sweet but don't want to commit to baking a full cake, this single-serving delight delivers all the satisfaction with minimal effort.
I first made this banana mug cake late one night when pregnancy cravings hit hard, and I needed something sweet without waiting for a full baking project. Now it's my go-to solution whenever my sweet tooth strikes but time is limited.
Ingredients
- Ripe banana: Brings natural sweetness and that classic banana bread flavor
- Butter: Adds richness and moisture to prevent a dry cake
- Granulated sugar: Sweetens the cake while helping create a tender crumb
- Milk: Adds necessary moisture for the perfect texture
- Vanilla extract: Enhances all the flavors and adds depth
- Salt: Balances the sweetness and makes flavors pop
- Baking powder: Provides the perfect rise in the microwave or oven
- Ground cinnamon: Pairs beautifully with banana for a warm, comforting flavor
- All-purpose flour: Forms the structure of our quick cake
- Chocolate chips: Melt into pockets of gooey goodness throughout the cake
Step-by-Step Instructions
- Prepare the Banana Base:
- Mash half a ripe banana directly in your mug until it becomes a smooth paste. Make sure to use a banana with plenty of brown spots for the best flavor and natural sweetness. Add the melted butter, sugar, vanilla extract, and milk, then stir vigorously until everything is well combined. This wet mixture forms the flavorful foundation of your mug cake.
- Add Dry Ingredients:
- Sprinkle in the flour, salt, cinnamon, and baking powder on top of your wet mixture. Stir gently but thoroughly until no dry pockets remain and the batter looks uniform. Be careful not to overmix as this can make your cake tough. The batter should look moist and somewhat thick, similar to a traditional cake batter.
- Mix in Chocolate Chips:
- Fold in the chocolate chips, distributing them evenly throughout the batter. This ensures you get melty chocolate in every bite. You can reserve a few chips to sprinkle on top before cooking for an extra appealing presentation. The chips will partially melt during cooking, creating pockets of chocolate goodness.
- Cook to Perfection:
- For the microwave method, cook for 45-65 seconds depending on your microwave's power. The cake should look set around the edges but slightly shiny on top. For the oven method, bake at 350°F for 22-30 minutes. The key is avoiding overcooking, which results in a dry cake. Let it cool for a few minutes before enjoying to allow the texture to set properly.

My favorite part about this recipe is how the banana and cinnamon fill my kitchen with the most comforting aroma. It reminds me of my grandmother's banana bread, but with the instant gratification that sometimes you just need at the end of a long day.
Making It Your Own
This mug cake welcomes customization based on your preferences and what you have available. Try adding a tablespoon of peanut butter for a banana-peanut combination, or fold in chopped walnuts for added texture and nutty flavor. For a more indulgent dessert, consider adding a tablespoon of cocoa powder to make it a chocolate banana mug cake. The recipe is forgiving and adaptable to your cravings.
Dietary Adaptations
This recipe easily transforms to meet various dietary needs. For a vegan version, use plant-based butter or oil, your favorite non-dairy milk, and ensure your chocolate chips are dairy-free. For gluten-free needs, substitute the all-purpose flour with a 1 to 1 gluten-free baking flour. The texture remains remarkably similar, making this a versatile treat for everyone at your table, regardless of dietary restrictions.
Topping Ideas
While delicious on its own, this banana mug cake reaches new heights with thoughtful toppings. A scoop of vanilla ice cream creates a warm and cold contrast that melts into the cake. A dollop of whipped cream adds lightness. For breakfast vibes, try a spoonful of Greek yogurt and a drizzle of honey. My personal favorite is adding a spoonful of peanut butter that gets slightly melty from the warm cake, creating a banana-peanut butter combination that's simply irresistible.

Frequently Asked Questions
- → Can I make this mug cake vegan?
Yes! Use plant-based milk, vegan butter, or oil, and ensure the chocolate chips are dairy-free to make this mug cake vegan.
- → What kind of flour can I use?
You can use all-purpose flour, whole wheat flour, oat flour, or gluten-free 1-to-1 baking flour as substitutes.
- → How do I know when the mug cake is done?
In the microwave, the top should look slightly shiny but set. Avoid overcooking to maintain a moist texture.
- → Can I bake it in the oven?
Yes, preheat your oven to 350°F and bake the batter in an oven-safe mug or ramekin for 22-30 minutes until a toothpick inserted comes out clean.
- → What toppings work well with this cake?
Top the cake with ice cream, whipped cream, nut butter, or even some extra chocolate chips for added indulgence.
- → What’s the best way to store leftovers?
If made in the oven, tightly wrap and store at room temperature for up to one day. Microwave versions are best enjoyed immediately.