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The best and (easiest) 5 Minute Chocolate Chunk Banana Bread Mug Cake. Because it’s Friday and we all need our chocolate fix. All made in one bowl, with pantry staple ingredients, super quick to mix up, healthy, and SO DELICIOUS! Yes, that pretty much sums up this mini banana bread mug cake, and it’s the perfect individual little cake to bake up this weekend. With over-ripe bananas, good honey, and your favorite chocolate bar, this is sure to become your favorite banana bread in minutes. Perfect for breakfast, as an afternoon snack, or a late-night dessert.

overhead close up photo of 5 Minute Chocolate Chunk Banana Bread Mug Cake

When you’re looking for something sweet, but you still need something healthy and quick to bake up?

Make these cute little mug cakes.

Look, I’m well aware that a mug cake might not be all that exciting. But you guys, please hear me out. If you’re on the healthy January trend and you still want something sweet to enjoy on a Friday night or over the weekend, this is 100% your recipe. Typically I’m all about a real deal baked dessert. I tend to avoid microwaving anything, but I make an exception for a mug cake.

The inspiration? Well, it came from a few sources. First and foremost, my go-to banana bread recipe. I made it a few years back and it’s one of the handfuls of recipes I actually make on repeat. Of course, I love all the recipes I share with you guys, but because I’m cooking and baking so many new recipes day in and day out, I rarely find the time to come back to older recipes…no matter how delicious they are.

But this banana bread is different. I make it so often and so does everyone else in the family.

prep photo of mashed banana

My second source came from the mug cakes I shared years and years ago that I brought back to life when everything went into lockdown. I’d forgotten what a fun and easy recipe they were. It’s actually a recipe I make on occasion every now and then when I just need something warm and sweet to enjoy, but I have no time to actually bake up a cake.

And finally, my third source of inspiration? No one other than my mom. She’s all about a low sugar, healthified dessert. And she loves nothing more than an EASY peasy recipe, so mug cakes just seemed fitting. With brown bananas on the counter and my favorite banana bread recipe in the back of my head, a banana bread mug cake was the obvious choice.

So, here we are, and the verdict? Better than I’d pictured in my head. The banana within these cakes is the real secret. Wel…the banana and all those chocolate chunks. Obviously.

prep photo of 5 Minute Chocolate Chunk Banana Bread Mug Cake before cooking

The quick details.

This banana bread cake comes together in five minutes tops, so the details are pretty darn quick.

Start with your wet ingredients. I like to use coconut oil for these cakes. Melt it in the microwave in a microwave-safe bowl. Once melted, add a very overripe banana and give it a good mashing with a fork. The key to any sweet banana recipe is to use bananas that are way past their prime and pretty black all over. Black bananas create the best sweet recipes due to their natural amount of sweetness.

When you have the banana all mashed up, whisk in a squeeze of honey, a single egg, and a splash of vanilla. I personally like to use honey as my sweetener as I’ve found it creates a perfectly soft, tender, and moist banana bread cake. But maple syrup works well too.

Once the wet ingredients are combined. Stir in the flour, baking soda, a pinch of cinnamon, and a pinch of salt. At this point, the cake is almost ready for “baking”.

overhead photo fo 5 Minute Chocolate Chunk Banana Bread Mug Cake

But I have a couple of secrets.

First, chocolate chunks…and a generous helping too. The chunks are a must and create the most luscious banana mug cake. You will fold them into the batter as the final ingredient. As the cake bakes, the chocolate sinks in, melting as it sinks. It leaves you with a puddle of warm melted chocolate throughout your cake. And with every bite, a little of that melted chocolate is scooped up.

And it is delicious.

Second, instead of mixing the batter in the mug you plan to “bake” in, mix the batter up in a small bowl, then transfer to a microwave-safe mug. Yes, it’s one additional dish to dirty. However, I found this ensures that the batter is more easily mixed up and in turn bakes up nicer too.

overhead photo of 5 Minute Chocolate Chunk Banana Bread Mug Cake

But the real KEY to success?

Eat this mug of banana bread warm, just after cooking. This isn’t a cake you want to eat leftover, it’s meant as a quick chocolate fix. It should be eaten right away and preferably with a small pat of butter, a drizzle of honey, and a sprinkling of sea salt on top. Nothing is better.

I will say that that every microwave is different, so the cooking time is a little tricky. That said, I tested this on two different microwaves and found two minutes to be just the right amount of time. You may need to adjust slightly by fifteen seconds, give or take.

Soo, have I convinced you that you need a banana bread mug cake in your life tonight?

This is the best afternoon pick me up…warm after-dinner dessert…or late-night treat while cozied up by the fire. It’s Friday, live a little. AND if you happen to have a snowy weekend in the forecast, you really need to bake this up. It’s great any day, but it’s best enjoyed on the coldest of days.

overhead photo of eaten 5 Minute Chocolate Chunk Banana Bread Mug Cake

Looking for more simple, healthy dessert recipes to bake? Here are a few favorites:

One Bowl Chocolate Chunk Chai Banana Muffins

Salted Tahini Butter Chocolate Chip Cookies

5 Minute Molten Chocolate Mug Cake

Lastly, if you make this 5 Minute Chocolate Chunk Banana Bread Mug Cake, be sure to leave a comment and/or give this recipe a rating! Above all, I love to hear from you guys and always do my best to respond to each and every comment. And of course, if you do make this recipe, don’t forget to tag me on Instagram! Looking through the photos of recipes you all have made is my favorite!

5 Minute Chocolate Chunk Banana Bread Mug Cake

Prep Time 3 minutes
Cook Time 2 minutes
Total Time 5 minutes
Servings: 1 large mug
Calories Per Serving: 788 kcal

Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.

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  • 1. In a bowl, stir together the mashed bananas, coconut oil, honey, egg, and vanilla until combined. Add the flour, baking soda, cinnamon, and salt, mix until just combined. Fold in the chocolate chunks. 
    2. Pour the batter into a (10-12 ounce) microwave-safe mug. Microwave on full power for 1 minute and 35 seconds to 2 minutes (I always do 1 minute 35 seconds, but it's better to under "bake"). Eat warm with a smear of butter and a drizzle of honey (you should do this!). Enjoy!


To Oven Bake: Preheat the oven to 350 degrees F. Lightly grease a 2 cup oven safe ramekin/mug or 2 muffin tins. Add the batter and bake 22-25 minutes. 
Microwave: every microwave is very different, so results may vary slightly. I have a 1200 watt microwave and found 2 minutes to be the perfect cooking time. You may need to cook 1 minute 45 seconds or 2 minutes 15 seconds. Start with 2 minutes. 
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  1. 5 stars
    I have made this recipe twice now. It is my favorite way to reuse over ripe bananas. Our family loves to our some maple syrup on top.

    1. Hi Brittany,
      Happy Sunday!! I am thrilled to hear that this recipe was enjoyed, thanks for sharing your review and making it! xxT

  2. 4 stars
    I liked the fluffiness, but it had too much salt for my taste. I’ll make again, but use only a pinch of salt. Also I threw in a tablespoon of chopped nuts after cooking. I love the chocolate and the crunch.

    1. Hi there,
      Wonderful! I love to hear that this recipe was a winner, thanks for trying it out! Sorry about the salt! Have a great weekend:)

  3. 5 stars
    Great for satisfying the need for a little something sweet after dinner! I usually bake mine in 2 ramekins for a double treat!

    1. Hi Linda,
      Happy Friday!!? Thanks for giving this recipe a try and sharing your review, I am so glad it was a hit! xT

  4. 5 stars
    So good! I accidentally dropped an already-overly-ripe banana, which basically turned to mush inside the skin, so I needed something quick, easy and delicious to do with it. This fit the bill! I also mixed everything inside the mug (after first melting the butter in there,) and the end result was perfect — moist & spongy, like a decadent bread pudding. I added both semi-sweet and white chocolate chips, which was what I had on hand, but next time I was thinking of including/subbing in other add-ins like walnuts, dried cranberries, etc. My advice is to definitely make it in a larger, wider mug if you have one — it will contain the ingredients better as they expand during microwaving, plus it will be easier to cut into portions to share! 🙂

    1. Hey April,
      Happy Friday! Thanks a bunch for trying this recipe out and sharing your feedback, I love to hear that it was a hit! xTieghan

  5. 5 stars
    OMG! Just what I *needed* for a quick sweet tooth satisfaction! I was lazy and mixed everything in the mug instead of in a separate bowl, and it actually worked out well. I was surprised at how substantial this recipe is. A lot of mug cakes only fill half of the mug. This was up over the top. Enough for two people, really (but I decided not to share). Perfect use for those overripe bananas!

    1. Hey there,
      Happy Wednesday! Thanks for sharing your review and making this recipe, I am so glad it was a winner! xxTieghan

  6. 5 stars
    These little banana delights turned out perfectly! They are not overly sweet, which I prefer. Instead of microwaving, I used two glass ramekins and baked 350° for 22 minutes in my small convection oven. They look gorgeous! Thank you.

    1. Hey Jann,
      Wonderful!! Thanks so much for sharing your review and making this recipe. Love to hear that it was a winner! xxT

  7. When I clicked on this recipe, it looked like it was going to be a really good dessert choice. But when I made it, I put less chocolate chips than the recipe said just to be healthier, and it turned out very bland and salty. I added the exact amount correctly of all the ingredients, but without sugar, this recipe is downright gross.

    1. Hi Carrie,
      Thanks so much for trying this recipe and sharing your feedback. Sorry to hear it wasn’t enjoyed! Have the best day! xx

      1. I have NEVER liked any mug cakes
        I have tried… and I have tried quite a few. This is literally up there with actual baked goods from the oven. I don’t usually write reviews, but I am honestly on here to to say, well done, and this will be a repeat quick fix for my sweet cravings! Thank you so much for sharing this GEM!

        1. Hi Meghan,
          Happy Sunday!! Thanks so much for making this recipe, I love to hear that it was enjoyed! Thanks so much for your kind message and sharing your feedback!? xTieghan

  8. 5 stars
    I made this (exactly as written) then added the butter on top after microwaving. I shared it with my husband and he said it was “heavenly”! Thanks for always making me look like a cool wife! …I’ve since forwarded the recipe to many friends 🙂

    1. Hey Maryjane,
      Love to hear this!! Thanks so much for making this recipe and sharing your feedback! ☀️xTieghan

  9. 5 stars
    My husband asked me if my favorite recipe gal has any recipes for one over-ripe banana – and here we are! This quick recipe was terrific! I made no changes and cut the finished mini-mug cake in half. Perfect (my husband was amazed that you have a one banana recipe)!

    1. Hi Renee,
      Thanks so much for making this recipe, I am so glad it was enjoyed!! Have the best week:) xTieghan

  10. 5 stars
    This was the best baked good I’ve ever made!!! I avoid baking at all costs but I had a craving for banana bread and obviously came to HFB for a recipe. I made these in a muffin tray instead of a mug (I don’t have a microwave) and it turned out better than I thought. I added a little more coconut oil than instructed and my bananas we’re frozen but it came out super moist and super good. This will be my go-to for a quick sugar fix.

    1. Hi Kristen,
      Wonderful!! Thanks a lot for giving this recipe a try, I love to hear that it was a winner! xTieghan