You know those bananas sitting on your counter right now that are way too brown to eat but you feel guilty throwing away?
Yeah. Make these.
I stumbled onto this recipe on a Saturday afternoon when I had three bananas that were basically black, a bag of chocolate chips I’d been meaning to use for something, and two kids who wanted something sweet after lunch. I didn’t want to make banana bread again. We’ve had banana bread four times this month. Everyone in this house is a little tired of banana bread.
So I mashed the bananas into a brownie batter instead, threw in some cocoa powder and chocolate chips, and put the pan in the oven mostly hoping for the best.
What came out was so fudgy and dense and chocolatey that my daughter asked me if I’d bought them from somewhere. She’s nine and she’s eaten a lot of my baking. That meant something.
I’ve made these six times since then. They never last past the first day.
Contents
Why These Work Better Than Regular Brownies
The banana does two things here that butter and oil can’t quite replicate. It adds moisture that keeps the brownies dense and fudgy even after they cool down completely — like, the next morning they’re still soft, which almost never happens with homemade brownies. And it adds a natural sweetness that means you don’t need as much sugar.
You can taste the banana if you’re looking for it. If you’re not looking for it, it just tastes like a really, really good brownie. My husband didn’t know there was banana in them until I told him after he’d eaten three.
The chocolate chips on top are not optional in my house. They melt slightly and create this glossy layer that makes the whole thing look way more impressive than a one-bowl recipe has any right to.
What You Need
(makes one 8×8 pan — about 16 brownies)
- 3 medium overripe bananas (the blacker the better)
- 2 large eggs
- ½ cup granulated sugar
- ¼ cup brown sugar, packed
- ⅓ cup unsweetened cocoa powder
- ½ cup all-purpose flour
- ¼ tsp salt
- 1 tsp vanilla extract
- ½ cup chocolate chips, plus a small handful for the top
- 2 tbsp melted butter or coconut oil (optional but adds richness)
How to Make Them
Step 1 — Mash your bananas completely
And I mean completely. Not mostly mashed with some chunks still in there — fully smooth. Lumps of banana in a brownie texture is a little weird. I use a fork and just go at it for a solid minute or two until it looks almost like a paste. The riper the banana, the easier this is and the sweeter your brownies will be.

Step 2 — Mix in the wet ingredients
Add the eggs, both sugars, vanilla, and melted butter if you’re using it, right into the same bowl with the banana. Stir until everything is combined. No mixer needed — just a fork or a whisk and some enthusiasm.

Step 3 — Add the dry ingredients
Sift in the cocoa powder, flour, and salt. Fold everything together until just combined — don’t overmix or the brownies get cakey instead of fudgy. A few small streaks are fine. Then fold in the chocolate chips.

Step 4 — Bake
Pour the batter into a greased 8×8 pan — it’ll be thick and that’s exactly right. Scatter a small handful of chocolate chips on top. Bake at 350°F for 22 to 25 minutes. The edges should look set and the center should still have a very slight jiggle when you shake the pan.
Step 5 — Wait. This part is hard.
Let them cool in the pan for at least 20 minutes before cutting. I know. I know. But if you cut into them hot they’ll fall apart and you’ll be sad. The fudgy texture sets up as they cool and it’s worth every minute of waiting.

Things I’ve Learned From Making These a Lot
The ripeness of your bananas genuinely matters more than anything else in this recipe. Yellow bananas with a few spots will give you a milder flavor. Bananas that are almost completely black will make these taste richer and sweeter. I wait until mine are practically embarrassing before I use them.
Don’t overbake. This is the most common mistake with brownies in general and it’s especially easy to do here because the banana makes the batter look darker than usual. Pull them out when the center still has a little movement. They’ll firm up.
If you want extra fudgy, refrigerate them for an hour after they cool. Cold banana brownies are genuinely a different and better experience. I don’t know how to explain it, they just are.
For a little crunch, add ¼ cup of chopped walnuts or pecans to the batter. My kids request this about half the time now.
These freeze really well — wrap individual squares and they keep for up to two months. I usually make a double batch and freeze half for the weeks when I need something homemade without the effort.
What to Do With Them
Honestly, eat them plain. They don’t need anything.
But if you want to be extra about it — and sometimes you do — a scoop of vanilla ice cream on a warm square is the kind of thing that makes a random Tuesday feel like a special occasion. A little drizzle of peanut butter on top is also very good if you’re into that combination. My husband is extremely into that combination.
They also pack well in lunch boxes, which makes them one of my favorite things to make on a Sunday for the week ahead.
The Part Where I Tell You to Save This
I have a folder on my phone of recipes I keep coming back to. The list isn’t that long. These brownies are on it.
They cost almost nothing to make, they come together in one bowl in about ten minutes of actual work, and they use up the bananas that were about to go in the trash anyway. That combination is hard to beat.
Make them this weekend. Or honestly, make them today if those bananas on your counter are ready. You’re going to want to have done it sooner rather than later.

Don’t throw away those spotted fruit! This fudgy banana brownies recipe is the ultimate way to use up those overripe banana recipes you have sitting on your counter. These are deeply chocolatey, incredibly moist, and honestly taste better than any traditional brownie made from scratch.
The best part? These easy banana brownies require just one bowl and no mixer, making cleanup a total breeze. Whether you’re looking for one bowl brownies for a quick weeknight dessert or a healthy banana brownies alternative the kids will love, this recipe delivers.
