Banana Chocolate Chunk Muffins
These Banana Chocolate Chunk Muffins are better than your usual banana muffins. They’re soft, fluffy, and filled with big pockets of chocolate in every bite!

If you have ripe bananas, these banana chocolate chunk muffins are the perfect way to put them to good use—no waste here! Don’t get me wrong, while I do love a classic banana chocolate chip muffin, these are even better. Think gooey chocolate chunks melting inside a fluffy banana muffin.
These muffins couldn’t be easier to make, and they use simple pantry staples you probably already have. I used to swear by Hershey’s dark chocolate chunks, but my kids weren’t fans of the bitterness. Now, I just chop up whatever milk chocolate bar we have on hand, and honestly, it’s so good. You’ve got to try it!
These muffins rise with perfect domes, thanks to the baking powder and baking soda. Their texture is light and moist—just how muffins should be.
This muffin might lean towards the dessert category, but hey, there’s no harm in enjoying it as a snack now and then with a nice cuppa!
More Tasty Banana Desserts to Try:
- Air Fryer Caramelized Bananas
- Banana and Carrot Muffins
- Pumpkin Banana Bread Muffins
- Air Fryer Banana Bread
- Chocolate Peanut Butter Banana Smoothie
Ingredients and Notes
*Scroll down for the printable recipe card with a full ingredient list, and measurements.

- Bananas – Overripe bananas with brown spots are perfect for moist muffins because they’re sweet and easier to mash.
- Sour Cream – Adds moisture and richness. Or sub with Greek yogurt.
- Chocolate Chunks – Hersheys chocolate chunks are what I’d normally use but if they’re a little too dark for your liking, swap them with your favorite milk chocolate bar.
- Melted Butter and Oil – Oil keeps muffins moist for days, while butter adds that rich flavor. I avoid using only butter in my muffins because they tend to dry out.
- Sugar – White granulated sugar or a mix of white sugar or brown sugar will work too.
How to Make Banana Chocolate Chunk Muffins
*Scroll down for the printable recipe card for a full list of ingredients and instructions.

Step 1: Preheat oven to 420F/215C. Line a 12-tin muffin tin with muffin liners.
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Step 2: Mash the bananas in a separate bowl.
Step 3: In a large mixing bowl, whisk together butter, oil, and sugar. Once the sugar is dissolved, add eggs and whisk until combined. Then, add vanilla extract, and salt, and mix in the mashed banana.

Step 4: In a separate bowl whisk together all-purpose flour, baking powder, and baking soda.
Step 4: Add the dry ingredients to the wet and gently fold it in.
Step 5: Now it’s time to toss in the chocolate chunks and fold them into the batter. If you’re using a chocolate bar, break it into pieces or chop it into chunks first.

Step 8: Bake the muffins at 420F for 5 minutes, reduce the temperature to 350F and bake for another 15 minutes until the top spring backs to the touch.
You can also do a toothpick test by inserting a toothpick in the middle of the muffin and if it comes clean your muffins are cooked all the way through.

Step 9: Let it cool in the pan for a few minutes and transfer it to a wire rack.
Storage
I’ve kept these muffins stored at room temperature for up to 5 days in an airtight container. It’s best to refrigerate them, to make them last longer than that.
I recommend microwaving them for a few seconds to melt the chocolate before eating. Trust me, biting into a cold chunk of chocolate is not my thing!
To freeze, Simply portion them out or store them in a big freezer bag for 3 months. To thaw, you can leave them in the refrigerator overnight or, like me, just microwave until it’s ready to eat.
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Recipe
Banana Chocolate Chunk Muffins

Equipment
- Baking sheet
Ingredients
Wet Ingredients:
- ¼ cup melted butter
- ¼ cup oil any neutral oil
- ¾ cup sugar
- 2 eggs
- ½ cup sour cream
- 1 tsp vanilla extract
- ½ tsp salt
- 1 cup mashed banana about 2-3 medium bananas
Dry Ingredients:
- 2 cups all purpose flour 280 grams
- 1 ½ tsp baking powder
- ½ tsp baking soda
- 1 cup chocolate chunks (See Notes)
Instructions
- Preheat oven to 420 degrees F. Line a 12-tin muffin pan with liners.
- Mash the bananas in a separate bowl.
- In a large mixing bowl, whisk together butter, oil and sugar. Once the sugar is dissolved, add eggs and whisk until combined. Add vanilla extract and salt. Mix in the mashed banana.
- In a separate bowl stir together all-purpose flour, baking powder and baking soda.
- Add the dry ingredients to the wet and gently fold it in. Next, fold the chocolate chunks into the batter.
- Bake the muffins at 420F for 5 minutes and reduce the temp to 350F and bake for another 15 minutes until the top spring backs to the touch. You can also do a toothpick test by inserting a toothpick in the middle of the muffin and if it comes clean your muffins are cooked all the way through.
- Let it cool in the pan for a few minutes and transfer to a wire rack.
Notes
- Chocolate chunks– I used to use Hersheys chocolate chunks but my kids find it a bit dark. Now, I chop up a block of our favorite milk chocolate bar instead.
- Store muffins at room temperature in an airtight container for up to 5 days. For longer storage, refrigerate them.
- Microwave for a few seconds to melt the chocolate and enjoy that fresh-baked gooeyness.
- Freeze muffins for up to 3 months in a freezer-safe bag or container.


Thanks Swathi.Stick around for more..
Thanks Kankana.I wish I had a daughter but it's all boys and me 🙂
Thanks Rathai. Thrilled to meet to you too as there are only few of us.
It was fun and the boys really enjoyed it..
Thanks Mona…