5-Minute Banana Bread in a Mug

Craving banana bread but don’t want the whole loaf? With just 5 minutes, half a banana, a microwave, and some other simple pantry ingredients, you can have a single serving of Banana Bread in a Mug.

Discovering mug cakes has made me so happy! I mean, quick, delicious desserts for one without turning on the oven? Am I dreaming? The options are endless, I’ve even mastered a 5-Minute Carrot Mug Cake.

This incredibly easy and tasty mug dessert is surprisingly moist and fluffy, despite the fact it is cooked in just 90 seconds in the microwave! Plus, it’s naturally vegan!

As a time-starved mom who loves a sweet treat, I love having a ridiculously easy dessert recipe like this.

Banana Bread in a Mug Ingredients

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Here’s everything you need:

• Overripe Banana. It’s best if your peel has brown spots. If your bananas aren’t ripe enough yet, you can place them on a baking sheet and stick them in the oven at 200°F for about 5 minutes until the peels turn black.
• Brown sugar. I use light brown sugar, but dark works too! Using brown sugar as opposed to granulated gives this mug banana bread a subtle caramel flavor.
• Vanilla extract & Cinnamon.
• All-purpose flour.
• Baking powder.
• Salt.
• Oil & milk.

Optional topping ideas:

• Whipped cream
• Sliced bananas
• Candied Walnuts
• Berries
• Peanut butter
• Chocolate hazelnut spread
• Chocolate syrup
• Chocolate Chips (you can also add these to the batter before microwaving!)
• Sprinkles
• Cinnamon or Cinnamon sugar

Banana Bread Mug Cake Tips and Tricks

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Use Overripe Bananas

As banana’s ripen, their flavor gets sweeter, bolder, and fruitier. So, in order to get this mug dessert well, banana-y, it’s best to use ripened bananas for this recipe.

In fact, if they are overripe and the peel is showing brown spots, then they’re just right for this! Not only will they be packed with flavor, but they will be softer and easier to mash.

If you have some bananas that aren’t quite overripe yet, you can still make this Banana Mug Bread. You’ll just have to quickly brown the bananas in the oven.

Pro tip: If you don’t have overripe bananas, set your oven to low (200°F) and stick the bananas in, still in their peels, on a baking tray. Keep them in there until the peel starts to turn black (this usually takes anywhere from 3-7 minutes).

How to Make Mug Banana Bread Batter

One of the best things about this recipe is it can be completely made in a mug! Start by peeling your bananas and placing them directly into the mug.

Since they are overripe (or heated in the oven), you should be very easily able to smash them with a fork.

Continue to crush your bananas with the fork until they are broken down and almost liquefied. It’s okay to have some lumps left!

Then, add the sugar and vanilla extract and use the fork again to mix. Make sure to completely combine, scraping the sides and corners of the mug to integrate everything together.

Next, add the flour, baking powder, salt and cinnamon. The stirring at this point is the most important. You definitely don’t want to have any lumps of flour or baking powder.

Again, make sure to loosen any ingredients that may get stuck on the edges or corners of the mug. Finally, add the oil and milk. Mix it slowly so that none of the wet ingredients splash out of the mug.

Continue to stir until everything is completely combined.

Microwave Your Banana Bread, then Let it Sit

Microwave your single-serve banana bread on high for 90 seconds. Then, leave it in the microwave for another minute with the door shut to continue to cook.

If you take it out of the microwave and you notice it looks underdone in the center, you can microwave it again for an additional 7-12 seconds on high or choose to leave it slightly underdone for a super moist texture.

It’s always better to undercook than overcook when it comes to making desserts in the microwave. Overcooking any kind of mug cake (or in this case, bread) tends to give it almost a “spongey” texture.

Microwave Times May Vary

Everyone’s microwave is a little bit different. My microwave is 900 watts, and on high, this banana mug bread is perfect after 90 seconds of heating and 1 minute of sitting in there after.

The average microwave is between 600 – 1200 watts. If you already know your microwave is only 600 watts, you will probably need an extra 10 seconds. However, if you know your microwave is 1200 watts, start with just 80 seconds.

If you’re not so sure about your microwave wattage, stick with 90 seconds. You can add more time, if necessary, but it will be safe to eat after 90 seconds.

Just make yourself a note for cooking time if you feel it was slightly over or under cooked so you can get it perfectly on point next time you make it.

Additionally, if you’re making more than one banana bread in a mug, it’s best to microwave them each separately.

Alternatively, you can bake this mug cake in the oven if you wish. Just make sure that your mug is oven safe. Place your oven safe mug on a baking sheet and bake the banana bread at 350°F on the top rack for 20-25 minutes until a toothpick comes out clean.

Storing Leftover Banana Bread Mug Cake

This vegan mug dessert is single serving, and intended to enjoy fresh out of the microwave when it is still warm. If you do have leftovers, cover your mug and keep it at room temperature for 1 or 2 days.

You can enjoy your leftovers at room temperature or reheat them for up to ten seconds to give the banana bread a little warmth. Reheating for more than 10 seconds may overcook it and give you a rubbery texture.

I do not advise freezing this mug banana bread or placing it in the refrigerator.

If you do want to prep to have some mug banana batter on hand to make it easier for when the craving hits, you can! Mix all the dry ingredients together and store it in a reusable storage bag.

Then, when you want your single-serve banana bread, all you have to do is smash the banana in a mug, add the prepped dry ingredients, and mix in the oil, milk, and vanilla extract.