There’s something wonderfully comforting about the smell of bananas and chocolate baking together. Banana bread brownies take the best of two beloved treats—moist, banana-sweet loaf and dense, fudgy brownie—and combine them into a single, irresistible bar. Whether you’re using up overripe bananas, craving a cozy afternoon snack, or looking for a dessert that feels both homey and a little indulgent, these banana bread brownies deliver. They’re easy to make, forgiving, and perfect for sharing (or not). Read on for a friendly, step-by-step guide to making them, plus tips, serving ideas, nutrition estimates, and a quick look at pros and cons.
Ingredients
Makes one 9x9 inch pan (about 12 brownies)
- Ripe bananas — 3 medium (about 1 1/2 cups mashed; very ripe with brown spots is best)
- Unsalted butter — 6 tablespoons (85 g), melted and slightly cooled
- Granulated sugar — 1/2 cup (100 g)
- Brown sugar — 1/4 cup packed (50 g)
- Large eggs — 2, room temperature
- Vanilla extract — 1 teaspoon
- All-purpose flour — 1 cup (125 g)
- Cocoa powder — 1/3 cup (35 g), unsweetened
- Baking powder — 1 teaspoon
- Salt — 1/2 teaspoon
- Greek yogurt or sour cream — 2 tablespoons (optional, for extra moisture)
- Chocolate chips — 1/2 cup (90 g) semi-sweet or dark
- Chopped walnuts or pecans — 1/2 cup (60 g) optional
- Espresso powder — 1/2 teaspoon optional, to deepen chocolate flavor
- Powdered sugar — for dusting (optional)
Substitutions and notes
- For a dairy-free version, replace butter with melted coconut oil and use dairy-free yogurt or omit the yogurt.
- For gluten-free, use a 1:1 gluten-free flour blend.
- If you prefer less sugar, reduce granulated sugar to 1/3 cup and brown sugar to 2 tablespoons; the bananas add natural sweetness.
Preparation Time and Yield
- Preparation time — 15 minutes (mashing bananas, mixing)
- Baking time — 25–30 minutes
- Cooling time — 20 minutes
- Total time — about 1 hour
- Number of servings — 12 brownies (cut into 3 rows by 4 rows)
Nutritional Information Per Serving (approximate)
Per brownie (1 of 12) — values are estimates and will vary by exact ingredients used:
- Calories — 220 kcal
- Total fat — 10 g
- Saturated fat — 5 g
- Carbohydrates — 30 g
- Sugars — 18 g
- Dietary fiber — 2 g
- Protein — 3 g
- Sodium — 120 mg
These numbers are rough estimates intended to give a general idea. For precise nutrition, use the exact brands and quantities you choose and run them through a nutrition calculator.
Directions Step by Step
1. Preheat and prepare pan
- Preheat your oven to 350°F (175°C).
- Line a 9x9 inch baking pan with parchment paper, leaving an overhang on two sides for easy removal. Lightly grease the parchment with a little butter or nonstick spray.
2. Mash bananas and combine wet ingredients
- In a medium bowl, mash the 3 ripe bananas with a fork until mostly smooth with a few small lumps for texture.
- Stir in the melted butter until combined. If the butter is very hot, let it cool slightly first so it doesn’t cook the eggs.
- Add granulated sugar and brown sugar, and whisk until the mixture is glossy.
- Beat in the eggs one at a time, then stir in vanilla extract and Greek yogurt if using.
3. Mix dry ingredients
- In a separate bowl, sift together all-purpose flour, cocoa powder, baking powder, and salt. Sifting helps remove lumps from the cocoa and aerates the flour for a lighter texture.
- If using espresso powder, whisk it into the dry mix.
4. Combine wet and dry
- Add the dry ingredients to the wet banana mixture in two additions, folding gently with a spatula until just combined. Avoid overmixing; a few streaks of flour are fine.
- Fold in chocolate chips and chopped nuts if using. Reserve a small handful of chips to sprinkle on top before baking for a pretty finish.
5. Bake
- Spread the batter evenly into the prepared pan, smoothing the top with a spatula. Sprinkle the reserved chocolate chips on top.
- Bake in the preheated oven for 25–30 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs but not wet batter. The brownies should be set at the edges and slightly soft in the middle—they will continue to firm up as they cool.
6. Cool and slice
- Remove the pan from the oven and let it cool on a wire rack for 20 minutes. Use the parchment overhang to lift the brownies from the pan and transfer to the rack to cool completely for cleaner slices.
- Once cooled, dust with powdered sugar if desired and cut into 12 squares.
Cooking Tips
- Use very ripe bananas. The riper the banana, the sweeter and more flavorful the brownies. Brown-spotted bananas are ideal.
- Measure flour correctly. Spoon flour into the measuring cup and level with a knife; don’t scoop directly from the bag to avoid dense brownies.
- Don’t overmix. Fold until just combined. Overmixing develops gluten and can make the texture cakier rather than fudgy.
- Check early. Ovens vary—start checking at 22 minutes. You want moist crumbs on the toothpick, not raw batter.
- Room temperature eggs. They incorporate more smoothly into the batter. If you forgot to take eggs out, place them in warm (not hot) water for 5–10 minutes.
- Add-ins balance. Nuts add crunch and contrast; chocolate chips add pockets of melty chocolate. Don’t overload the batter or it may not set evenly.
- For extra fudginess. Replace 1 tablespoon of flour with 1 tablespoon of cocoa powder, or add an extra tablespoon of melted butter.
- Make ahead. These brownies keep well at room temperature in an airtight container for 2 days, or refrigerated for up to 5 days. Warm briefly before serving to revive softness.
- Freeze for later. Wrap individual squares tightly and freeze for up to 3 months. Thaw at room temperature or warm in a low oven.
How to Serve
- Warm with ice cream. A scoop of vanilla or salted caramel ice cream on a warm brownie is classic and irresistible.
- Dust and drizzle. Dust with powdered sugar and drizzle with melted chocolate or caramel sauce for a café-style finish.
- With coffee or tea. These brownies pair beautifully with a strong coffee, espresso, or a cup of black tea.
- As a breakfast treat. Serve a small square with yogurt and fresh fruit for a decadent weekend breakfast.
- Make it a sundae. Top with whipped cream, chopped nuts, and a cherry for a nostalgic dessert.
- For sharing. Cut into smaller squares and arrange on a platter for parties or potlucks—easy to pick up and enjoy.
Advantages
- Uses overripe bananas. This recipe is a great way to rescue bananas that might otherwise be tossed.
- Comforting flavor combination. Banana and chocolate are a classic pairing—sweet, familiar, and crowd-pleasing.
- Simple and forgiving. The batter is easy to mix and forgiving if you make small mistakes. It’s a good recipe for beginner bakers.
- Versatile. You can adapt it with nuts, different chocolate types, or add spices like cinnamon for variation.
- Portable. Brownies travel well for picnics, school lunches, or coffee dates.
- Make-ahead friendly. They store and freeze well, making them convenient for planning ahead.
Disadvantages
- Not low-calorie. These are an indulgent treat; they contain butter, sugar, and chocolate, so they’re not suitable for low-calorie diets.
- Texture expectations. If you expect a classic cake-like banana bread, these are denser and fudgier—some may prefer one texture over the other.
- Allergen concerns. Contains eggs, dairy, gluten, and possibly nuts—so not suitable for people with those allergies unless adapted.
- Moisture sensitivity. Overripe bananas add moisture; if bananas are too watery or you add too much yogurt, the brownies can be underbaked or gummy.
- Shelf life. Because of the banana, they don’t keep as long at room temperature as plain brownies; refrigeration or freezing is recommended for longer storage.
Variations and Flavor Ideas
- Peanut butter swirl. Drop spoonfuls of peanut butter on top of the batter and swirl with a knife before baking.
- Cinnamon banana. Add 1 teaspoon ground cinnamon to the dry ingredients for a warm spice note.
- Double chocolate. Use dark cocoa and extra chocolate chips for a richer, more intense chocolate experience.
- Coconut and banana. Fold in 1/3 cup shredded coconut and top with toasted coconut flakes.
- Vegan version. Replace eggs with flax eggs (2 tablespoons ground flaxseed + 6 tablespoons water, chilled) and use coconut oil and dairy-free chocolate. Texture will be slightly different but still delicious.
- Fruit and nut. Fold in 1/2 cup dried cherries or cranberries with the nuts for tart contrast.
Troubleshooting Common Problems
- Brownies are too dry. You may have overbaked them or used too much flour. Reduce baking time by a few minutes next time and measure flour carefully. Adding the optional yogurt can help.
- Brownies are gummy in the center. This can happen if bananas are overly watery or the pan is too small. Make sure to test with a toothpick and allow cooling time; they firm up as they cool.
- Edges burn before center cooks. Your oven may run hot or the pan is too thin. Lower the oven temperature by 10–15°F and bake a bit longer, or place the pan on a baking sheet to buffer direct heat.
- Soggy bottom. This can result from underbaking or too much moisture. Bake until a toothpick shows moist crumbs, not wet batter, and cool completely before slicing.
Serving Size Ideas and Presentation
- Casual snack. Cut into 12 squares and serve on a simple plate with a napkin.
- Elegant dessert. Cut into 9 larger squares, dust with powdered sugar, add a quenelle of whipped cream and a few berries.
- Party bites. Cut into 24 small squares and arrange on a platter with toothpicks for easy grabbing.
- Gift box. Wrap individual squares in parchment and tie with twine for homemade gifts.
Brief Conclusion
Banana bread brownies are a delightful hybrid that brings together the best of two worlds: the comforting sweetness of banana bread and the rich, fudgy satisfaction of brownies. They’re easy to make, adaptable to many dietary needs with a few swaps, and perfect for using up ripe bananas. Whether you bake them for a cozy family dessert, a bake sale, or a simple afternoon treat, these bars are sure to please.
Final Notes
If you try this recipe, start with very ripe bananas and resist the urge to overmix. Small adjustments—like adding a pinch of espresso powder or a swirl of peanut butter—can make the recipe feel uniquely yours. Most importantly, enjoy the process: baking is as much about the memories and warmth it creates as it is about the final bite.
Happy baking, and may your kitchen smell like warm chocolate and bananas.
