3-Ingredient Banana Mug Cake (Microwave Banana Bread)

Hey banana lovers! 🍌 Ready for a sweet treat in a flash? Check out this easy recipe for a 3-ingredient banana mug cake – the perfect single-serving dessert for those craving something deliciously simple. Whip up this simple mug cake in minutes and satisfy your sweet tooth effortlessly! 🍰

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3 Ingredients Banana Mug Cake

This delicious banana mug cake is the perfect way to use up overripe bananas!

It tastes like a warm slice of banana bread straight out of the oven. The best part is it only takes 3 ingredients and is ready in 2 minutes!

It makes a quick snack, healthy dessert, and I have made it for breakfast too!

If you’d like a banana mug cake with no egg, try this recipe instead.

When I had my bakery/catering business, one of the most popular treats was our chocolate chip banana bread.

We had many regular orders every week for that banana bread, as well as our soft pumpkin cookies.

(If you like pumpkin desserts, try this pumpkin spice mug cake or this paleo pumpkin mug cake.)

Since this is one of my daughter’s favorite treats, I make banana bread pretty often.

But I make mug cakes more often. 😉

One especially busy weekday morning, she was craving something different for breakfast.

(For another yummy breakfast recipe that’s kid-friendly too, try this oatmeal mug cake.)

We were short on time, but not wanting to send my kid to school hangry, I whipped up this 3-ingredient banana mug cake.

It’s like a mini banana cake and it’s the perfect size for one person.

This microwave mug cake is also a great way to use up those extra bananas sitting on the counter.

Banana Mug Cake Ingredients

You only need these three simple ingredients to make this microwave banana bread (you probably already have all of these things in your kitchen):

An egg

A banana

Flour

That’s it!

Here is a cinnamon banana mug cake recipe that is paleo and gf too if you love cinnamon!

Tips for Making the Best 3-Ingredient Banana Mug Cake

In a small mixing bowl, mash your banana with either the back of a fork, or a pastry cutter (I highly recommend getting one of these if you don’t already have one).

You don’t have to spend forever on this, but you don’t want any big chunks of banana; you want it mashed well.

I recommend putting your microwave-safe mug onto a plate to catch any spills that might happen.

Cook time with depend on the size of your mugs and your microwave wattage.

Start with 60 seconds, and add 15 second increments until cooked.

Because the egg is the only leavener (there isn’t any baking powder or baking soda), this easy mug cake will not be as fluffy or cake-like.

Feel free to add 1/2 tsp of baking powder, but then this won’t be a 3-ingredient banana mug cake anymore. 🙂

3-Ingredient Banana Mug Cake Variations

To make a gluten-free version, you can substitute the all-purpose flour with gluten-free flour.

You could also try this super popular (the most popular recipe on this site) recipe for healthy banana bread in a mug. It’s made with almond flour, so it’s high protein too!

You could also sub the regular flour for an equal amount of oat flour or whole wheat flour.

Coconut flour doesn’t work well in this healthy banana mug cake recipe.

If you would like this microwave banana mug cake sweeter, you can add a tablespoon of sugar: coconut sugar, maple syrup, regular sugar, etc.

If you add a liquid sweetener, you might need to add a little more cook time to this mug recipe.

You could also sprinkle the top of the batter with chocolate chips before you cook it.

Peanut butter chips are a nice addition too and go well with the banana flavor!

You can top with vanilla ice cream or chocolate spread (like Nutella).

Let’s make this easy banana bread recipe!

Try these other 3-ingredient recipes:

• 3-ingredient flourless chocolate mug cake
• 3-ingredient peanut butter mug cake

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