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Moist, fluffy, and delicious, this banana mug cake is the perfect single serving dessert, snack, or even breakfast that can be ready in just minutes.

Banana mug cake in a cup with sliced banana and peanut butter drizzle.
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What is a mug cake?

It is just as it sounds – cake that you make entirely in a cup! Seriously!

After chasing after your kids all day long, it’s the perfect single-serve cake that you can turn to for a much needed “power up” as my son likes to say. I especially like to enjoy this as a late-night dessert after the kids are down for the night. Hallelujah!

All you need are a handful of ingredients, measuring cups, a whisk, and a mug. And the best part? It takes less than 2 minutest to make in the microwave.

This microwave banana mug cake is very similar to my strawberry mug cake except it’s naturally sweetened with banana rather than maple syrup.

Since it’s SO easy and quick to whip up, I suppose you can make one for your little one(s) too.

This will be a great no-fuss Breakfast or afternoon Snack that you can feel good about serving to your baby or toddler!

But promise me that you will fuel yourself first. No sharing :). I’m saying this to remind myself as well! OK? OK!

Ingredients

all the ingredients laid out on a white background

I am highlighting just the ones that need further explanation. The complete list is in the recipe card below.

  • Overripe banana – The browner the better!. They mash easier and add a stronger banana flavor. Be sure to measure after mashing so you get exactly 1/2 cup.
  • Butter – can also use melted coconut oil
  • Almond flour – adds a lovely nutty flavor and tender texture. You can use all purpose flour or oat flour, if you prefer, but the cake won’t be as light. Still super tasty though! You can also use quick oats like in this oatmeal mug cake.
  • Milk – I prefer whole milk but use any milk of choice

Step-by-Step Instructions

A two image collage showing how to make the cake.
  1. Melt butter.
  2. Add all the ingredients to the microwave-safe mug in the order listed in the recipe card below.
  3. Whisk the cake batter until combined.
  4. Microwave for 1 minute and 30 seconds
Cake after microwaved.

Add-ins

I highly encourage you to try the recipe as is first. A great thing about this delicious banana mug cake is that you can experiment with all kinds of add-ins like:

  • Finely chopped nuts – walnuts, pecans, etc.
  • Diced fruit – like blueberries, raspberries, strawberries
  • Finely grated carrots – a great way to get extra veggies into your child
  • Unsweetened cocoa powder – you should totally try this chocolate avocado pudding!
  • Mini chocolate chips – for a quick chocolate fix!

Tips for Success

A close up shot of spooned cake.
  • Be sure to add the ingredients in the order listed! Adding the dry ingredients at the end will help the batter from bubbling over.
  • Place a plate underneath the cup when microwaving to catch possible spills.
  • Don’t overcook! The exact time will differ slightly as every microwave is different. Start checking after 90 seconds and add 10 or so more seconds for tall mugs. The top will be springy to the touch but don’t worry! It will continue to cook as it cools and will firm up.
  • Wait at least 5 minutes before eating.

Serving Suggestions

Banana mug cake in a cup with sliced banana and peanut butter drizzle.

While delicious as is, this easy mug cake is also the perfect vehicle for all kinds of toppings.

Here are some suggestions:

Storage

While it’s best to consume the day of, it can be refrigerated for up to 3 days.

Frequently Asked Questions

What size mug could work best for this banana mug cake?

Grab one that can hold at least 12 ounces of liquid. It can be short and wide as you see pictured here or small and tall (not tapered). If using the latter, you will probably need to cook for 10-15 seconds longer. Make sure it’s microwave-safe!

How can I make this mug cake in the oven?

Follow the instructions exactly and place the oven-safe mug on a baking sheet. Bake at 350° Fahrenheit for 10-15 minutes, or until set.

More Banana Recipes

4.91 from 22 votes

Banana Mug Cake

Moist, fluffy, and delicious, this banana mug cake is the perfect single serving dessert, snack, or even breakfast that can be ready in just minutes.
Prep Time: 5 minutes
Cook Time: 2 minutes
Total Time: 7 minutes
Servings: 1
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Ingredients 

  • 1/2 cup (120g) mashed banana, 1 medium banana
  • 1 egg, beaten
  • 1 tablespoon butter, melted
  • 1 tablespoon milk
  • 1/2 teaspoon vanilla extract
  • 5 tablespoons almond flour (40g)
  • 1/4 teaspoon baking powder
  • 1/2 teaspoon cinnamon (optional)

Instructions 

  • Whisk together the wet then add the dry. Microwave for 1 minute 30 seconds.

Notes

  • Be sure to add the ingredients in the order listed! Adding the dry ingredients at the end will help the batter from bubbling over.
  • Place a plate underneath the cup when microwaving to catch possible spills.
  • Wait at least 5 minutes before eating.

Nutrition

Calories: 443kcal | Carbohydrates: 26g | Protein: 14g | Fat: 34g | Fiber: 6g | Iron: 2mg
Like this recipe? Rate and comment below!

About Min

Thank you so much for stopping by! I am Min, a Registered Dietitian, a Christ follower, a wife, and a mom to our two miracle babies! Currently, I’m having a ton of fun feeding their tummies and sharing our baby led weaning journey! Follow me on Instagram if interested in seeing daily menu as well as tips and tricks.

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Recipe Rating




27 Comments

  1. 4 stars
    It was pretty good. I added a pinch of salt, but other than that it took 2 minutes in my microwave. For a healthier snack to curb the sugar cravings it was nice.