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Home Diet Gluten-Free
5 from 4 reviews

3-Min Moist & Fluffy Microwave Banana Mug Cake

3 min 30 seconds
GF Gluten-Free
by: Lindsay Grimes
July 1, 2021 (Updated: September 21, 2024)
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This is an overhead image of a yellow mug with fluffy banana cake with chocolate chips. The mug sits on a white counter with a couple chocolate chips on the counter.
Banana mug cake is only 6 ingredients and bakes in under 2 minutes! The result? Fluffy and moist microwave chocolate chip banana mug cake!

Banana mug cake is going to be your new favorite dessert to make when you have an extra spotty banana. It’s only six ingredients and takes less than 5 minutes to prep and bake in the microwave.

Do you ever make something and you think, “well this is dangerously easy to make.” You mix it all up, you pop it in the microwave. From beginning to end the whole shebang takes less than 5 minutes.

If you like banana bread and fluffy cake, this easy mug cake is for you!

Look for your new favorite recipe in my Ultimate List of Chocolate Desserts: 30+ Ideas! I have so many favorites!!

This is an overhead image of the ingredients needed to make microwave banana mug cake. There are small bowls, one with coconut sugar, one with almond flour anf baking powder, one with chocolate chips. There is also an egg and half a banana sitting on the white counter.
This is an overhead image of a yellow mug with raw banana cake batter topped with chocolate chips. The mug sits on a white counter.
This is a side image of fluffy cake in a yellow mug. A spoon is scooping out a bite of cake and leaning against the mug.

What is a banana mug cake?

A banana mug cake is a single serving cake typically made in the microwave. Typically banana mug cake is moist and tender with a sweet, banana flavor.

If the recipe includes other ingredients, such as nuts or chocolate chips, these will also contribute to the flavor and texture of the cake. It’s a quick and easy way to make a sweet treat that’s ready in just a few minutes.

Why You’ll love this Recipe

  1. So Easy! Making a banana mug cake is a quick and easy dessert that you can make in just a few minutes. You only need a microwave and a few simple ingredients that you probably already have in your pantry!
  2. Customize it! You can add different ingredients to your banana mug cake to make it your own. In this recipe we are adding chocolate chips but feel free to add in nuts, dried fruit, or a sprinkle of cinnamon.

Ingredients and substitutions

Banana. We just need half a banana for this recipe. The riper the banana, the better! Once you mash it, it’ll end up being about 2 tablespoons of mashed banana.

Egg. Just one! I haven’t tested this recipe with an egg replacer so if you do any experimenting with an egg-free option, let me know how it goes!

Coconut Sugar. I’ve tried this with a sticky sweetener (agave nectar) and have found granular sweetener works best. My favorite is coconut sugar, but another granular sweetener should probably work.

Almond Flour. I always go with blanched almond flour and haven’t tested it with other flours so let me know in the comments if you do any experimenting!

Baking Powder. For some fluff!

Chocolate Chips. You can really customize whatever you want to fold into this mug cake. Walnuts or peanut butter chips would be delish!

How to make this 3-Minute Cake:

It’s so simple and you make it all in your mug! Mash the banana in your mug. Use a small whisk to whisk in the egg and coconut sugar.

Then, add the almond flour and baking powder. Whisk again until combined.

Fold in the chocolate chips, sprinkle some more on top and then microwave. I microwaved mine for 1 minute and 30 seconds. This made for a light and fluffy yet moist and tender mug cake.

Want to step it up with more chocolate? Drizzle some on top! Check out my post How to Melt Chocolate Chips!

This is an overhead image of a yellow mug with fluffy cake with chocolate chips. The mug sits on a white counter with a couple chocolate chips on the counter. A spoon has a bite of the cake and is leaning against the top of the mug.

Recipe Success Tips

  1. Mix well: Thoroughly mix all the ingredients to ensure that the batter is well combined and free of clumps.
  2. Microwave for the right time: Keep an eye on it and stop the microwave when the cake has risen and is set in the middle. Overcooking can lead to a dry, tough cake.
  3. Experiment with flavors: Feel free to add different flavors to your mug cake such as cocoa powder, spices, or even a teaspoon of instant coffee. Get creative and have fun with it!

More mug cake recipes

  • Microwave Pumpkin Mug Cake
  • 1-Min Quickie Chocolate Chip Cookie in a Mug
  • Microwave Funfetti Mug Cake
  • One Minute Chocolate Mug Cake

Did you make this? Leave a review below and tag me on Instagram, Facebook, or Pinterest!

This is an overhead image of a yellow mug with fluffy banana cake with chocolate chips. The mug sits on a white counter with a couple chocolate chips on the counter. Recipe
GF Gluten-Free

3-Min Moist & Fluffy Microwave Banana Mug Cake

Banana mug cake is only 6 ingredients and bakes in under 2 minutes! The result? Fluffy and moist microwave chocolate chip banana mug cake!

Recipe by:Lindsay Grimes
5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 4 reviews
Prep: 2 minCook: 1 min 30 secondsTotal: 3 min 30 seconds
Print recipe Rate recipe Pin Save recipe
Servings: 1 mug cake 1x

Ingredients

  • 1/2 ripe banana, mashed (about 2 tablespoons)
  • 1 egg
  • 2 tablespoon coconut sugar
  • 4 tablespoons blanched almond flour
  • 1 teaspoon baking powder
  • 2 – 3 tablespoons chocolate chips

Instructions

  1. Mash the banana in a mug. 
  2. Add the egg and coconut sugar and mix until combined. 
  3. Add the almond flour and baking powder. Mix again until combined. 
  4. Fold in most of the chocolate chips. 
  5. Sprinkle a couple of the chocolate chips on top. 
  6. Microwave for 1 minute and 30 seconds. 
  7. Cool for a minute or two an enjoy!

Nutrition Info:

  • Serving Size: 1 mug cake
  • Calories: 164
  • Sugar: 27.4g
  • Sodium: 8mg
  • Fat: 3.9g
  • Saturated Fat: 0.5g
  • Unsaturated Fat: 0g
  • Trans Fat: 0g
  • Carbohydrates: 33.4g
  • Fiber: 1.5g
  • Protein: 1.8g
  • Cholesterol: 0mg
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Reader Interactions

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  1. AvatarAshley Bronsky says

    Posted on 7/7/21 at 5:09 pm

    I feel the need to confess that I’ve made this three times since you posted it six days ago. 😂 It’s amazing! So simple. I ran out of almond flour and used 1:1 GF baking flour and it worked just as well. I love how versatile your recipes are. Thanks for this!

    Reply
    • Lindsay Grimes Freedman says

      Posted on 7/7/21 at 8:42 pm

      Ahh that makes me so happy!! Enjoy!!! xo

      Reply
  2. AvatarCarol Johnson says

    Posted on 7/21/21 at 6:16 pm

    Made this for breakfast this morning. It’s super quick and delicious! Next time going to add few walnuts to it.

    Reply
    • Lindsay Grimes Freedman says

      Posted on 7/22/21 at 8:44 pm

      Love the idea of walnuts in there! I’m so happy you loved it! xo

      Reply
  3. AvatarDavis says

    Posted on 7/25/21 at 5:10 am

    I love banana mug cake. This recipe is amazing and simple, I will surely try it. Thanks for the recipe

    Reply
    • Lindsay Grimes Freedman says

      Posted on 7/26/21 at 8:38 am

      Yay! I’m so happy you love it! Thanks so much for the comment! xo

      Reply
  4. AvatarMelissa says

    Posted on 3/30/22 at 5:19 pm

    I don’t have a microwave so would you have any suggestions of how to cook this in my countertop toaster oven? I have a bake option… thanks!

    Reply
    • Lindsay Grimes Freedman says

      Posted on 5/12/22 at 11:42 am

      Hi Melissa! I would set it to 350F but don’t really know what the time would be. I would check it after 5 minutes and then just keep an eye on it until it puffs up around the edges. Let me know how it goes! xo

      Reply
  5. AvatarDounia says

    Posted on 5/11/24 at 4:27 pm

    Super delicious. I had no coconut sugar so I used coconut flakes and a teaspoon of honey.
    With a dash of cinnamon.
    Thanks for sharing 👍

    Reply
    • Lindsay Grimes says

      Posted on 5/14/24 at 1:57 pm

      Yum! That sounds delish!! Thanks so much for your comment! xo

      Reply

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Lindsay

Nice to Meet You!

I’m Lindsay - cookbook author, blogger and chocolate lover! If gluten-free desserts are your jam, you’re in the right place! I live in south Jersey with my family and new puppy Roxie! Some of my favorite things are oat milk lattes, sunny days and warm, gooey chocolate chip cookies.

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This is a side image of banana cake in a yellow mug. A spoon is scooping out a bite of cake and leaning against the mug. Text overlay reads "microwave banana mug cake."
This is an overhead image of a yellow mug with banana cake. More chocolate chips are on the white counter around the mug with an antique spoon with a scoop of mug cake lays on the counter. Text overlay reads "banana mug cake."