The Best Banana Mug Cake

This gooey banana mug cake is the perfect treat to cook yourself when you’re feeling a little hungry. It’s also a great quick, and easy dessert that you can cook up after dinner.

Banana Mug Cake

By the time you’re ready to eat this cake, it should be moist, fluffy, and packed with that lovely banana flavor we all know and love.

This mug cake is so delicious it’s hard to resist making it every night. It only takes just a few simple steps, a few ingredients and a minute to cook. The result is a sweet cake that is incredibly moist, and it’s the perfect treat to give yourself after a long day of hard work.

Extras to have with this Mug Cake

Usually, you can enjoy these tasty cakes just on their own, but if you want to take it to the next level, then a scoop of vanilla ice cream goes perfectly on top.

It also goes great with some hot custard, but that involves more work unless you buy the premade custard. You could go one step further and have it with some banana custard. It would be the ultimate banana snack.

The easiest extra that you can have with this delicious cake is some cream drizzled over the top. Any cream will work, but I suggest using something without any sweetener.

if you have any suggestions for what else to have with this cake, then I would love to hear them.

Single Serving

One serving of this banana cake will only feed one person unless you’re not feeling very hungry then you might be able to feed two.

Banana Cake in a Mug

If you want to cook for two then just double the recipe and split it across two mugs. You may need to adjust the cooking time.

You can also make this in a bowl if you need to feed lots of people, but at that point, you might just want to make a full dessert such as sticky date pudding.

Personalize this Cake

There are so many slight changes that you can make this recipe so that it will better suit what you’re after. I will quickly go through a few of my favorite variations.

Adding some chocolate chips to the cake mixture will give you a delicious cake that is similar to the cookie dough in a mug. The chocolate chips melt and will leave you with gooey bits of chocolate throughout the banana mug cake.

Banana Cake with Ice Cream

If you want no eggs in this recipe, then leave the egg out. The cake should still cook to be gooey and moist. If the batter ends up a little too dry then simply top up with some more milk.

Let us know of any variations that you enjoy with this recipe. I only touched on a few, and I know there is so many more.

Overripe Bananas Work Best

For this banana mug cake to work the best, you will need to use overripe bananas. If they’re unripe, then they will not mash properly. Unmashed bananas leave you with a very unsatisfying cake as you won’t get the smoothness and sweetness from the banana that you require.

There are plenty of sweet baked goods you can make with overripe bananas.

If you have a ton of bananas that you need to use and want to do more than just this mug cake, then be sure to take a look at the fantastic banana bread. It too is incredibly easy but will need to be cooked in a traditional oven rather than the microwave.

The video below will show you the few steps to whipping up this tasty dessert in a mug. If you prefer to read, then you can find the full written recipe right underneath the video.

Banana Mug Cake Recipe

4.88/5 (98%) 16 votes
Prep Time1 Minute
Cook Time1 Minute
Total Time2 Minutes


  • 1 Tbsp butter, melted
  • 1 egg
  • 1 Tbsp milk
  • 1 ripe banana, mashed
  • 3 Tbsp plain flour
  • 2 Tbsp brown sugar ( Amazon | Walmart )
  • ½ tsp baking powder


  1. Firstly, melt the butter in the microwave. (Roughly 10 seconds)
  2. Beat in the egg and banana.
  3. Add the dry ingredients, milk, and mix until combined.
  4. Cook in the microwave for 1 minute and 30 seconds. Cook further, if not fully cooked.
  5. Serve & Enjoy

Recipe Tips

  • If you like your mug cakes slightly gooey in the middle, then reduce the cooking time slightly.
  • For the best results use an overripe banana.
  • Add a drop of vanilla extract for a bit of extra flavor.
  • You can make this banana cake gluten-free by replacing the flour and baking powder with gluten-free variants.
  • Mug cakes can make a mess in your microwave so keep an eye on it. Placing a plate under the mug will make cleaning up easier if it does end up overflowing.
  • Use a skewer to ensure that the middle is fully cooked. The skewer should come out clean. This step is essential if you can’t eat any undercooked egg.

Nutrition Information

Serving Size: 245g (8.6 oz)
Servings Per Recipe: 1
Calories Per Serving: 471
Amount Per Serving
Total Fat: 16.8g
Saturated Fat: 9.1g
Trans Fat: 0.5g
Total Carbohydrate: 74g
Dietary Fiber: 4g
Sugars: 42g
Cholesterol: 196mg
Sodium: 82mg
Protein: 10g

The information above is an estimate generated by an online nutrition calculator.

Other Tasty Sweet Recipes to Try

There are quite a few easy desserts that you’re able to cook up in the mug. Personally, I think they’re all pretty good but if you want one similar to this one then be sure to check out the gooey chocolate brownie.

I love cooking mug cakes as they’re so easy to make and they’re the perfect comfort food. Another one that I highly recommend that you try is the breakfast oatmeal, it too uses banana and is delicious.

I hope that you like this banana mug cake and that you didn’t run into any issues making it. If you have some feedback, tips or anything else that you would like to say, then please don’t hesitate to drop a comment right below.


  1. Avatar for Alaina
    Alaina on

    Very satisfying cake. I threw some chocolate chips in the final stir and it turned out delicious. I also topped with a sugar syrup after the cake had cooled a little. I was full after consuming half the cake and had to finish the rest about an hour later it was so yummy! Thank you so much!

  2. Avatar for Allison
    Allison on

    This recipe is delicious. I used almond milk, a tablespoon of oil instead of an egg, and added a tablespoon of cocoa powder. Delicious!

  3. Avatar for Vicky
    Vicky on

    Hello and thank you!
    Would this work in a toaster oven instead of microwave, to make it healthier? (If yes, what temp and time?)

  4. Avatar for Vicki
    Vicki on

    I needed something sweet to eat but I am on a soft food diet and this was perfect! Very easy and quick to make. I will keep this around and add extras to it for my tastes. Thank you so much!

  5. Avatar for Jackie
    Jackie on

    I added a few walnuts… it was very tasty!!

  6. Avatar for David McReynolds
    David McReynolds on

    Amazing! I got the quantities wrong the first time but it showed so much promise I tried again and it was perfect! Like others here I wasn’t really sure what to expect but it just works. I will experiment with new ingredients… Many thanks!

  7. Avatar for Duncan Williamson
    Duncan Williamson on

    It turned out really well. I needed a big mug! 850 Watt microwave took 2 minutes to cook. I used a small banana and forgot the milk. Still, it was very good.

  8. Avatar for Sarah
    Sarah on

    I use this recipe every weekend! I love it! I’ve been trying out new things to add to it and I’ve come up with a few good combinations.
    – put a dollop of biscoff spread in it before baking, it’ll give you a gooey center. or just add it after baking as a topping
    – bananna still a bit hard? bake them with some sugar before putting them in. it’ll give you a nice caramel flavour.
    – caramel/ toffee / dulce leche
    – throw in some funfetti in the mixture and pipe some whipped cream on top for a fun “birthday” mug cake

  9. Avatar for Elizabeth
    Elizabeth on

    This was delicious, really moist and flavoursome. Loved the texture.

  10. Avatar for Melinda Muyargas
    Melinda Muyargas on

    This was great, thanks! An easy way to make a banana a little more exciting.

  11. Avatar for Sherry
    Sherry on

    Great flavor but mushy.

  12. Avatar for Eliza
    Eliza on

    I cooked for around 1 minute 30 seconds. I added a splash or two of oil instead of an egg. I would even use one and a half or two bananas! You could also substitute the sugar for rice malt or maple syrup, even half as much to make this healthier! Loved it, thank you!

  13. Avatar for Laura
    Laura on

    This worked well as a quick snack!
    I did put the egg in it and it made it rather eggy and dense. I’ll have to try it without the egg next time.

  14. Avatar for Holly
    Holly on

    Made this today but made it dairy and soy free using earth balance “butter” and vanilla cashew milk. It was delicious. Next time I will try it with dairy free chocolate chips! Yum!

    1. Avatar for Susan
      Susan on

      After dinner I love a sweet treat! This banana mug cake was delicious! I added another 30 seconds to get the perfect cake texture. I used almond milk and also Bob’s red mill gluten free flour. Definitely a 5/5!

  15. Avatar for Mulan
    Mulan on

    Delicious! Make sure you use a large mug and put it on a plate before putting it in the microwave because this recipe makes quite a lot of batter. Great way to use up overripe bananas!

  16. Avatar for Mollie
    Mollie on

    Quick, easy and yummy, added chocolate chips too! Cooking time was about 1 minute 30 for me though

  17. Avatar for ALC
    ALC on

    Turned out great! Super easy and my son loved it. Total microwave time was closer to 1 minute 30 seconds.

  18. Avatar for Saby
    Saby on

    The cake turned out really good!!! Great recipe!! Thanks

    1. Avatar for Cayti
      Cayti on

      Am I doing this wrong? Is the consistancy supposed to be kind of jiggly not slightly crispy on the outside like most cakes? I just didnt know if that’s how mug cakes usually are or I am just doing something wrong. Great flavor though

    2. Avatar for Gus
      Gus on

      It sounds like you’re doing it correctly. Unfortunately, mug cakes don’t tend to go crispy on the outside.

  19. Avatar for Bill
    Bill on

    That was awesome. Thanks!

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