Chocolate Chip Banana Bread Recipe for Dinner Tonight

I make this chocolate chip banana bread whenever I have three overripe bananas on the counter. It bakes in one bowl with no mixer and fills the kitchen with a rich, chocolatey smell for an hour. The semi-sweet chips melt into pockets throughout the loaf and the top gets a crackled, golden crust.

Why This Chocolate Chip Banana Bread Works

The banana flavor comes from very ripe, heavily speckled bananas. The blacker the peel, the sweeter and more fragrant the mash. I wait until they look almost too far gone — that is when the banana flavor is strongest.

Sour cream adds moisture and a slight tang that keeps the crumb tender without making the loaf dense. It also helps the chocolate chips hold their position throughout the batter rather than sinking to the bottom.

Scattering extra chocolate chips on top before baking gives the loaf a glossy, melted surface when it comes out of the oven. Every slice shows dark, shiny pools of chocolate against the golden crumb.

Ingredients

• 3 very ripe bananas, mashed (about 1 1/2 cups / 340g)
• 1/3 cup (75g) unsalted butter, melted
• 2 tablespoons vegetable oil
• 3/4 cup (150g) granulated sugar
• 2 large eggs
• 1 teaspoon vanilla extract
• 1/4 cup (60g) sour cream
• 1 1/2 cups (185g) all-purpose flour
• 1 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/2 teaspoon salt
• 1 cup (170g) semi-sweet chocolate chips, divided

What You Need for Chocolate Chip Banana Bread

Very ripe bananas — the peel should be mostly brown or heavily black-spotted. Under-ripe bananas have less sugar and less fragrance. The flavor difference between a yellow banana and a black one is significant in this recipe.

Sour cream — full-fat sour cream keeps the crumb soft and moist. Plain full-fat Greek yogurt is the best substitute at a 1:1 ratio. Low-fat versions add moisture but reduce the richness.

Unsalted butter + oil — butter adds flavor and oil adds moisture. Using both gives a richer crumb than using one alone. Coconut oil works as a substitute for vegetable oil at the same ratio.

Semi-sweet chocolate chips — I use mini chips for even distribution throughout the batter. Standard-size chips work but tend to cluster. Dark chocolate chips (60-70% cacao) give a more intense chocolate flavor with less sweetness.

Baking soda + baking powder — both are needed. Baking soda reacts with the acid in the bananas and sour cream for lift. Baking powder adds extra rise. Do not substitute one for the other.

How to Make Chocolate Chip Banana Bread

1. Preheat oven to 325°F (165°C). Grease a 9×5 inch (23×13 cm) loaf pan with butter or cooking spray.
2. Add bananas to a large bowl and mash until smooth with a fork or potato masher.
3. Add melted butter, vegetable oil, sugar, eggs, vanilla, and sour cream to the bananas. Whisk until fully combined.
4. Add flour, baking soda, baking powder, and salt to the wet mixture. Stir until just combined — stop when no streaks of flour remain.
5. Fold in 3/4 cup (128g) of the chocolate chips using a spatula.
6. Pour batter into the prepared loaf pan. Scatter remaining 1/4 cup (42g) of chocolate chips evenly over the top.
7. Bake for 55 to 65 minutes, until a toothpick inserted in the center comes out with just a few moist crumbs.
8. Cool in the pan for 15 minutes, then transfer to a wire rack to cool completely before slicing.

Chocolate Chip Banana Bread Variations

Double Chocolate Banana Bread

Add 1/4 cup (25g) of unsweetened cocoa powder to the dry ingredients and reduce the flour by 2 tablespoons. The batter turns deep brown and the chocolate flavor intensifies on every level. Use dark chocolate chips for a bittersweet finish.

Chocolate Chip Walnut Banana Bread

Fold in 1/2 cup (60g) of roughly chopped toasted walnuts along with the chocolate chips. The walnuts add a crunchy, slightly bitter contrast to the sweet banana and melted chocolate. Toast them in a dry pan for 3 minutes to bring out the full flavor.

Chocolate Chip Banana Bread Muffins

Pour the same batter into a greased 12-cup muffin tin, filling each cup about 2/3 full. Bake at 350°F (175°C) for 20 to 22 minutes until a toothpick comes out clean. The muffins have more crisp edges and a slightly dome-shaped top with a faster bake time.

Healthy Chocolate Chip Banana Bread

Swap the vegetable oil for 2 tablespoons of unsweetened applesauce and reduce the sugar to 1/2 cup (100g). Use white whole wheat flour instead of all-purpose flour for added fiber. The loaf bakes slightly denser but the banana flavor carries through just as well.

Tips for the Best Chocolate Chip Banana Bread

• I never overmix the batter after adding the flour. A few strokes too many activates the gluten and the loaf comes out tough instead of tender.
• Tent the loaf with aluminum foil at the 40-minute mark if the top is browning too fast. The inside still needs time to set.
• I test for doneness with a toothpick inserted at the center. Moist crumbs are fine — wet batter means it needs more time.
• Cool the loaf completely before slicing. Cutting too early causes the crumb to tear and the chocolate chips to smear across the slice.
• I use room-temperature eggs and sour cream. Cold ingredients can seize the melted butter and make the batter lumpy.
• For extra-chocolatey chocolate chip banana bread, press a few extra chips into the sides of the loaf halfway through baking.

Make Ahead & Storage

This chocolate chip banana bread keeps at room temperature for up to 3 days, wrapped tightly in plastic wrap or stored in an airtight container. I wrap it the same day it cools to lock in moisture. The chocolate chips help it stay soft longer than plain banana bread.

To freeze, wrap cooled slices individually in plastic wrap and place them in a zip-top freezer bag. Frozen slices keep for up to 3 months. Thaw at room temperature for 45 minutes or warm a slice in the microwave for 20 seconds. I freeze half the loaf immediately when I bake it so I always have some on hand.

Common Questions

How ripe should bananas be for chocolate chip banana bread?

Very ripe — the peel should be mostly brown or heavily black-spotted. Ripe bananas have more natural sugar and a more intense fragrance. A yellow banana with green tips will not produce the same sweetness or depth of banana flavor in the finished loaf.

Can I make chocolate chip banana bread without sour cream?

Yes. Full-fat plain Greek yogurt is the best substitute at a 1:1 ratio. You can also use buttermilk at the same amount — the extra liquid loosens the batter slightly but the loaf still bakes up tender. Avoid swapping sour cream for milk, which lacks the fat and acid needed for the right crumb texture.

Why is my chocolate chip banana bread gummy in the middle?

It is usually underbaked. The toothpick test is the most reliable check — a few moist crumbs are acceptable, but wet batter means it needs more time. Overmixing the batter can also cause a gummy texture by developing too much gluten. Stir only until the flour disappears.

Can I freeze chocolate chip banana bread?

Yes. Cool the loaf completely, slice it, and wrap each slice in plastic wrap. Store in a freezer bag for up to 3 months. Thaw slices at room temperature for about 45 minutes or microwave them for 20 seconds. Freezing slices individually makes it easy to grab one at a time.

How do I know when chocolate chip banana bread is done?

Insert a toothpick at the center of the loaf. If it comes out with just a few moist crumbs, the bread is done. If it comes out with wet batter, add 5 to 10 more minutes and test again. The internal temperature should reach 200 to 205°F (93 to 96°C) at the center.

This chocolate chip banana bread is the easiest way to use up ripe bananas and end the day with something warm and chocolatey. Save this recipe and bake it the next time your bananas go past their prime.