Chocolate Banana Bread Recipe From Scratch

I bake this chocolate banana bread whenever I have overripe bananas sitting on the counter. It uses cocoa powder AND chocolate chips for a double chocolate effect that tastes like fudge in loaf form. One bowl, 15 minutes of prep, and the oven does the rest.

Why This Chocolate Banana Bread Works

Ripe bananas are the secret here. The browner and softer the banana, the more natural sugar and flavor it contributes. I wait until the peels are almost entirely black before using them for this loaf.

Unsweetened cocoa powder goes into the batter, and semi-sweet chocolate chips get folded in just before baking. The cocoa deepens the chocolate flavor throughout the crumb while the chips melt into pockets of rich chocolate through every slice.

The texture stays moist for days because the banana acts as a natural humectant. A slice pulled from the fridge on day three is just as good as it was fresh from the oven.

Ingredients

• 3 very ripe bananas (about 1 1/2 cups / 340g mashed)
• 1 1/2 cups (195g) all-purpose flour
• 1/4 cup (25g) unsweetened cocoa powder
• 3/4 cup (150g) granulated sugar
• 1/2 cup (113g) unsalted butter, melted
• 2 large eggs
• 1 teaspoon vanilla extract
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 1 cup (170g) semi-sweet chocolate chips

What You Need for Chocolate Banana Bread

Very ripe bananas — the more black spots, the better. Under-ripe bananas won’t mash smoothly and lack the sweetness that makes this loaf taste like dessert. If your bananas are not yet ripe, bake them unpeeled at 300°F (150°C) for 15 minutes until the skins turn black.

Unsweetened cocoa powder — use natural unsweetened, not Dutch-process. Dutch-process cocoa is alkalized and reacts differently with baking soda, which can affect the rise. Natural cocoa powder keeps the batter chemistry intact.

Semi-sweet chocolate chips — fold these in at the end rather than stirring them in with the batter. Folding keeps the chips intact so you get distinct melted pockets in each slice rather than a uniform chocolate color throughout.

Melted butter — melted butter gives a denser, moister crumb than softened butter creamed with sugar. It also blends in a minute flat, which keeps this recipe at one bowl.

Baking soda — reacts with the natural acids in bananas and cocoa powder to give the loaf its rise. Check that yours is fresh — baking soda older than 6 months often fails to activate fully.

How to Make Chocolate Banana Bread

1. Preheat oven to 350°F (175°C). Grease a 9×5 inch (23×13 cm) loaf pan with butter or line with parchment paper.
2. Mash the ripe bananas in a large bowl with a fork until mostly smooth. A few small chunks are fine.
3. Whisk in the melted butter, eggs, sugar, and vanilla extract until combined.
4. Sift in the flour, cocoa powder, baking soda, and salt. Stir until just combined — do not overmix or the loaf becomes tough.
5. Fold in 3/4 cup of the chocolate chips, reserving the rest for the top.
6. Pour the batter into the prepared loaf pan. Scatter the remaining chocolate chips over the top.
7. Bake for 60-65 minutes until a toothpick inserted in the center comes out with a few moist crumbs but no raw batter.
8. Let the loaf rest in the pan for 10 minutes, then transfer to a cooling rack. Cool for at least 20 minutes before slicing.

Chocolate Banana Bread Variations

Double Chocolate Banana Bread

Increase the cocoa powder to 1/3 cup (35g) and use both semi-sweet and dark chocolate chips in equal amounts. The extra cocoa gives the crumb a near-fudge texture. Dust the top with a light layer of cocoa powder once cooled for a bakery-style finish.

Chocolate Banana Bread with Walnuts

Fold 1/2 cup (50g) of roughly chopped walnuts or pecans in with the chocolate chips. The nuts add a toasted crunch that contrasts the soft crumb. Toast the nuts in a dry pan for 3 minutes before adding for deeper flavor.

Chocolate Banana Bread Muffins

Divide the batter evenly into a 12-cup muffin tin lined with paper liners. Bake at 350°F (175°C) for 22-25 minutes until a toothpick comes out clean. Muffins cool faster and are easier to grab individually — great for meal prepping a week of breakfasts.

Vegan Chocolate Banana Bread

Replace the 2 eggs with 2 flax eggs (2 tablespoons ground flaxseed + 6 tablespoons water, rested 5 minutes). Use coconut oil instead of butter and dairy-free chocolate chips. The texture is slightly denser but still moist and sliceable after cooling.

Tips for the Best Chocolate Banana Bread

• I always check doneness at 60 minutes and let it go to 65 if the toothpick still comes out wet. Every oven runs differently — a glass loaf pan takes 5 more minutes than a metal one.
• Do not overmix the batter after adding the flour. Overmixing develops gluten and gives you a dense, chewy loaf instead of a tender crumb. Stir until the last streak of flour disappears, then stop.
• Let the loaf cool at least 20 minutes before slicing. Cutting into a hot loaf causes it to compress and gives you gummy slices instead of clean ones.
• For the cleanest slices, use a serrated bread knife with a gentle sawing motion rather than pressing straight down.
• Scatter reserved chocolate chips on top just before baking for a glossy, bakery-style chocolate top that looks as good as it tastes.

Make Ahead & Storage

Chocolate banana bread keeps at room temperature wrapped tightly in plastic for 3 days. After that, move it to the fridge where it keeps for up to a week. Cold slices from the fridge taste slightly fudgier — I actually prefer it after a day in the cold.

To freeze, wrap individual slices in plastic wrap and seal in a freezer bag. Frozen slices keep for 3 months. Thaw at room temperature for 1 hour or microwave for 30 seconds. The whole loaf can also be frozen — wrap tightly in two layers of plastic and foil, then thaw overnight in the fridge.

Common Questions

Can I use frozen bananas for this chocolate banana bread?

Yes. Thaw frozen bananas completely in the fridge overnight or on the counter for 2 hours. Drain any liquid that collects, then mash as usual. Frozen bananas are often sweeter than fresh ripe ones and work perfectly in this batter.

Why did my chocolate banana bread sink in the middle?

The most common cause is underbaking — the center looks set but isn’t. Test with a toothpick at the very center of the loaf. It should come out with a few moist crumbs but no wet batter. Another cause is overmixing the batter, which creates too much air that collapses during baking.

Can I reduce the sugar in chocolate banana bread?

You can cut the sugar down to 1/2 cup (100g) if your bananas are very ripe and sweet. Very ripe bananas already add significant sweetness. Cutting below 1/2 cup risks a dry crumb because sugar contributes to moisture retention in the batter.

Do I need to sift the cocoa powder?

Sifting is recommended. Cocoa powder clumps easily and unsifted lumps can leave dark bitter spots in the finished loaf. A quick sift through a fine mesh strainer takes 30 seconds and gives you an evenly distributed chocolate flavor throughout.

This chocolate banana bread comes out moist, fudgy, and deeply chocolatey every time I make it. Save this recipe and tap the link for the full step-by-step guide.