Ever have a few overripe bananas sitting in the kitchen and no idea what to do with them? Before making another banana smoothie, turn them into these Chocolate Banana Oat Bars.
They are soft, chewy, full of chocolate flavor, and easy to make with everyday ingredients. Ripe bananas add natural sweetness, oats give the bars a hearty texture, and cocoa powder brings that rich chocolate taste. Add a handful of chocolate chips, and you have a snack that feels like a treat without needing a complicated recipe.
These bars are perfect for breakfast on busy mornings, an afternoon snack, or something sweet to enjoy with a cup of coffee.
Recipe at a Glance
- Prep time: 10 minutes
- Bake time: 20–25 minutes
- Total time: About 35 minutes
- Servings: 9 bars
- Difficulty: Easy
Ingredients
- 2 large ripe bananas, mashed
- 2 cups rolled oats
- ¼ cup unsweetened cocoa powder
- ⅓ cup peanut butter or almond butter
- ¼ cup milk, dairy or plant-based
- 2 tablespoons maple syrup or honey, optional
- 1 teaspoon baking powder
- 1 teaspoon vanilla extract
- ¼ teaspoon salt
- ⅓ cup chocolate chips, plus a few extra for the top
A quick tip: Use bananas with plenty of brown spots. They are softer, easier to mash, and generally sweeter than barely ripe bananas.
How to Make Chocolate Banana Oat Bars
1. Prepare the Oven and Baking Pan
Preheat your oven to 175°C (350°F).
Line an 8-inch square baking pan with parchment paper, leaving a little overhang on the sides so you can lift the bars out easily after baking.
2. Mash the Bananas
Place the ripe bananas in a large mixing bowl and mash them with a fork until mostly smooth.
A few small lumps are fine. They will add moisture and a little texture to the finished bars.
3. Mix the Wet Ingredients
Add the peanut butter, milk, vanilla extract, and maple syrup or honey, if using.
Stir until everything is well combined. The mixture should look creamy, with the banana evenly distributed throughout.
4. Add the Dry Ingredients
Add the rolled oats, cocoa powder, baking powder, and salt.
Mix until the oats are coated in the chocolate-banana mixture. Fold in the chocolate chips.
The batter should be thick and moist, rather than pourable. If it seems unusually dry, add another tablespoon of milk.
5. Transfer to the Pan
Spoon the mixture into the prepared baking pan.
Spread it evenly into the corners and gently press the surface down with the back of a spoon. Sprinkle a few extra chocolate chips on top for a bakery-style finish.
6. Bake Until Set
Bake for 20–25 minutes, or until the edges look set and the middle no longer appears wet.
The bars should feel firm around the edges but remain slightly soft in the center. Avoid overbaking them, as too much oven time can make oat bars dry.
7. Cool and Slice
Remove the pan from the oven and let the bars cool for at least 20–30 minutes.
For cleaner slices, allow them to cool completely before cutting them into nine squares.
They will become firmer as they cool, so try not to cut them while they are still very hot.
Final Tip
These Chocolate Banana Oat Bars are a simple way to turn ripe bananas into a chocolatey snack without spending much time in the kitchen. Keep the recipe as it is for a soft, chewy texture, or experiment with peanut butter, walnuts, or extra chocolate chips.
Make a batch, let it cool, and keep a few bars in the fridge for those moments when you want something sweet, satisfying, and homemade.