There are days when a delicious dessert is all you crave, but you also want it quick and easy. Enter the 5 Minute Chocolate Chunk Banana Bread Mug Cake, a delightful treat that combines the comforting flavors of banana bread with the indulgence of chocolate. This recipe is perfect for those moments when you want something sweet but don’t have the time or energy to bake a whole loaf. With just a handful of ingredients and a microwave, you can whip up this mug cake in less time than it takes to brew your coffee. Trust me, once you try it, you’ll want to make it again and again!
Why I Love This Recipe

There’s something incredibly satisfying about being able to create a warm, delicious dessert in just five minutes. The 5 Minute Chocolate Chunk Banana Bread Mug Cake is not only quick to prepare, but it’s also incredibly moist and packed with flavor. The combination of ripe bananas and chocolate chunks makes for a delightful experience in every bite. Plus, it’s a fantastic way to use up those overly ripe bananas sitting on your counter. You can easily customize it to suit your taste preferences, making it a versatile recipe for any occasion. And let’s be honest, who doesn’t love a warm, gooey chocolate treat?
Your Shopping Guide
To make your 5 Minute Chocolate Chunk Banana Bread Mug Cake, you’ll need the following ingredients:
- 1 medium overly ripe banana (mashed, about 1/3 cup mashed)
- 1 tablespoon melted coconut oil (or butter)
- 1 tablespoon honey (or maple syrup)
- 1 large egg
- 1 teaspoon vanilla extract
- 1/4 cup whole wheat pastry flour (or all-purpose flour)
- 1/2 teaspoon baking soda
- 1/4 teaspoon ground cinnamon
- 1/4 teaspoon kosher salt
- 1/4 cup semi-sweet or dark chocolate chunks
Equipment at a Glance
To prepare this mug cake, you’ll need a few simple tools:
- Mug – A microwave-safe mug is essential for cooking your cake.
- Fork – Perfect for mashing the banana and mixing the ingredients.
- Microwave – This is what makes this recipe so quick and convenient.
Method: 5 Minute Chocolate Chunk Banana Bread Mug Cake.

Making this mug cake is a breeze! Follow these simple steps:
Step 1: Mash the Banana
In your microwave-safe mug, mash the medium overly ripe banana with a fork until smooth. You should have about 1/3 cup of mashed banana.
Step 2: Add Wet Ingredients
To the mashed banana, add 1 tablespoon of melted coconut oil (or butter), 1 tablespoon of honey (or maple syrup), 1 large egg, and 1 teaspoon of vanilla extract. Mix well until all the wet ingredients are combined.
Step 3: Incorporate Dry Ingredients
Sprinkle in 1/4 cup of whole wheat pastry flour (or all-purpose flour), 1/2 teaspoon of baking soda, 1/4 teaspoon of ground cinnamon, and 1/4 teaspoon of kosher salt. Stir until just combined, being careful not to overmix.
Step 4: Add Chocolate Chunks
Fold in 1/4 cup of semi-sweet or dark chocolate chunks into the batter, ensuring they are evenly distributed.
Step 5: Microwave
Microwave the mug on high for 1 minute and 30 seconds. Depending on your microwave’s wattage, you may need to adjust the time slightly. The cake should rise and be set in the center when done.
Smart Substitutions

If you’re looking to customize your 5 Minute Chocolate Chunk Banana Bread Mug Cake, consider these substitutions:
- Flour: Use gluten-free flour for a gluten-free version.
- Sweetener: Coconut sugar or agave nectar can be used in place of honey or maple syrup.
- Fats: Applesauce can replace coconut oil or butter for a lighter option.
- Mix-ins: Swap chocolate chunks for walnuts, pecans, or dried fruit for added texture and flavor.
Method to the Madness
The beauty of this 5 Minute Chocolate Chunk Banana Bread Mug Cake lies in its simplicity. The combination of ripe bananas and the quick cooking method means you can enjoy a warm, freshly baked treat in no time. The banana not only adds natural sweetness but also keeps the cake incredibly moist. The chocolate chunks create a delightful melty surprise that takes it to the next level. Plus, the use of whole wheat pastry flour means you’re getting a slightly healthier option without sacrificing taste. It’s a win-win!
Meal Prep & Storage Notes
One of the best things about this mug cake is that it’s meant to be enjoyed fresh. However, if you find yourself with leftover batter, you can store it in the fridge for up to 24 hours. Just give it a good stir before microwaving again. For those who love meal prep, consider mashing a few bananas ahead of time and storing them in individual portions in the fridge. This way, you can whip up your mug cake even faster on those busy days!
Troubleshooting Q&A
My mug cake overflowed in the microwave. What did I do wrong?
This can happen if you fill your mug too full. Make sure to use a larger mug and only fill it about halfway to allow room for the cake to rise.
Why is my mug cake rubbery?
Overmixing the batter can lead to a rubbery texture. Be gentle when combining the wet and dry ingredients, and mix just until incorporated.
Can I use a different sweetener?
Absolutely! You can substitute honey with maple syrup, agave nectar, or coconut sugar, adjusting the amount to taste if necessary.
What if I don’t have a microwave-safe mug?
If you don’t have a microwave-safe mug, you can use a small microwave-safe bowl or ramekin. Just ensure it’s large enough to hold the batter without overflowing.
If you love the ease and deliciousness of this recipe, here are some healthy-ish favorites you might enjoy:
Let’s Eat
Now that you have the recipe for the 5 Minute Chocolate Chunk Banana Bread Mug Cake, it’s time to indulge. This warm, gooey treat is not only delicious but also incredibly satisfying, especially when enjoyed straight from the mug. Whether you’re treating yourself after a long day or surprising a friend with a quick dessert, this mug cake is sure to impress. Don’t forget to share your creations on social media and tag your favorite food bloggers! Enjoy every delicious bite, and happy baking!

5 Minute Chocolate Chunk Banana Bread Mug Cake.
Equipment
- Mug
- Fork
- Microwave
Ingredients
- 1 medium overly ripe banana mashed, about 1/3 cup mashed
- 1 tablespoon melted coconut oil or butter
- 1 tablespoon honey or maple syrup
- 1 large egg
- 1 teaspoon vanilla extract
- 1/4 cup whole wheat pastry flour or all-purpose flour
- 1/2 teaspoon baking soda
- 1/4 teaspoon ground cinnamon
- 1/4 teaspoon kosher salt
- 1/4 cup semi-sweet or dark chocolate chunks
Instructions
- In your microwave-safe mug, mash the medium overly ripe banana with a fork until smooth, about 1/3 cup mashed banana.
- Add melted coconut oil (or butter), honey (or maple syrup), egg, and vanilla extract to the mashed banana. Mix well until combined.
- Sprinkle in whole wheat pastry flour (or all-purpose flour), baking soda, ground cinnamon, and kosher salt. Stir until just combined, careful not to overmix.
- Fold in semi-sweet or dark chocolate chunks, ensuring even distribution throughout the batter.
- Microwave the mug on high for 1 minute and 30 seconds. Adjust time slightly depending on your microwave wattage. The cake should rise and be set in the center.
Notes
- Use a larger mug and fill only halfway to prevent overflow during microwaving.
- Mix ingredients gently to avoid a rubbery mug cake texture.
- Customize with gluten-free flour, different sweeteners, or nuts for variety.
- Store leftover batter in the fridge up to 24 hours; stir before microwaving again.
- Mash bananas ahead of time and portion for quicker preparation on busy days.
