Double Chocolate Banana Bread – Fudgy & Moist

This double chocolate banana bread is insanely fudgy, chocolatey, and the perfect way to use up those ripe bananas sitting on the counter. With a rich dark cocoa crumb and pockets of melted semi-sweet chocolate chips, every slice delivers a deep chocolate hit balanced by natural banana sweetness. The batter comes together in one bowl, and the loaf bakes up moist and tender with a crackly top.

Banana bread gets a serious upgrade with a double dose of chocolate. This recipe uses ripe bananas to add moisture and natural sweetness, while dark cocoa powder and semi-sweet chocolate chips create a fudgy, intensely chocolatey crumb. The method is straightforward: mash, whisk, fold, bake.

The result is a loaf that's moist, tender, and packed with chocolate in every bite. Perfect for using up overripe bananas, this bread keeps well and can be enjoyed warm or at room temperature. It's a reliable, no-fuss bake that delivers on flavor and texture every time.

Ingredients

Why this recipe works

The combination of mashed bananas and melted butter creates a super moist crumb, while the sour cream adds extra tenderness and a slight tang that balances the sweetness.

Dark cocoa powder provides a deep, rich chocolate flavor without being overly bitter, and the semi-sweet chips melt into gooey pockets throughout the loaf. Baking at 350°F allows the bread to rise evenly and develop a crackly top while keeping the interior soft and fudgy.

Using both granulated and brown sugar contributes to the perfect texture: granulated sugar helps the bread rise and brown, while brown sugar adds moisture and a hint of molasses.

The folding technique is crucial—mixing just until the flour disappears prevents the gluten from overdeveloping, which would make the bread tough. The result is a tender, cake-like loaf that slices cleanly and stays moist for days.

Notes and substitutions

For the best banana flavor, use bananas that are heavily speckled or even black. They should be soft enough to mash easily with a fork. If your bananas are not ripe enough, you can speed up the process by placing them in a warm oven for a few minutes, but the natural sweetness will be less developed. Do not skip the sour cream—it adds moisture and a subtle tang that enhances the chocolate.

Dark cocoa powder gives a more intense chocolate flavor, but regular unsweetened cocoa works too. Semi-sweet chocolate chips are ideal because they hold their shape and provide bursts of melted chocolate.

If you prefer a less sweet loaf, use dark chocolate chunks. The loaf pan should be lined with parchment paper for easy removal. A 9x5-inch pan is standard; if using a different size, adjust the baking time accordingly.

• sour cream: plain Greek yogurt or buttermilk
• vanilla bean paste: 1 teaspoon vanilla extract
• dark cocoa powder: regular unsweetened cocoa powder
• semi-sweet chocolate chips: dark chocolate chunks or milk chocolate chips

Equipment

• 9x5-inch loaf pan
• parchment paper
• mixing bowls
• whisk
• spatula
• fork
• cooling rack
• toothpick