Fudgy Chocolate Banana Brownies
- Prep
- 15 min
- Cook
- 35 min
- Yield
- 12 brownies
- Level
- medium
- Cuisine
- American
Dense, fudgy brownies that blend rich dark chocolate with natural banana sweetness and moisture. The mashed banana replaces some fat, creating a tender crumb while adding subtle fruity notes that complement cocoa. Perfect for potlucks, lunch boxes, or casual dessert gatherings. This version skips chocolate chunks in favor of chips for even distribution, and the banana keeps them moist for days without added oil.
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Method
9 steps- 1
Preheat oven to 350F. Grease and line an 8x8-inch square pan with parchment paper.
- 2
Whisk together melted butter, sugar, eggs, vanilla, and mashed banana in a large bowl until combined.
- 3
In a separate bowl, whisk cocoa powder, flour, salt, and baking powder.
- 4
Sift dry mixture into wet ingredients and fold gently until just combined.
- 5
Fold in chocolate chips.
- 6
Transfer batter to prepared pan.
- 7
Bake 30-40 minutes until a skewer inserted in center comes out with no wet batter.
- 8
Cool in pan 15 minutes, then transfer to wire rack to cool completely.
- 9
Cut into 12 bars and serve.
Tips
Use very ripe bananas with dark spots for maximum natural sweetness and moisture; overripe bananas prevent excessive sugar dependency.
Fold dry ingredients gently to avoid overdeveloping gluten, which toughens brownies. A few flour streaks are fine.
Insert skewer off-center when testing doneness; brownies continue cooking as they cool, so slightly underbaked is better than dry.
Good to Know
Airtight container at room temperature up to 5 days, or refrigerate up to 1 week. Banana moisture keeps them tender longer than typical brownies.
Bake up to 2 days ahead. Wrap cooled brownies individually in plastic wrap for convenient grab-and-go servings.
Cut into 12 equal bars. Serve at room temperature or chilled. Dust with powdered sugar or cocoa if desired. Pairs well with milk, coffee, or vanilla ice cream.
Common Mistakes
Overmix batter to avoid dense, tough brownies; fold until flour is just visible.
Overbake to avoid dry texture; rely on the skewer test rather than time alone.
Use underripe bananas to avoid excess moisture; very ripe bananas are essential.
Substitutions
Dairy-Free Swaps
Gluten-Free Swaps
General Alternatives
FAQ
Can I use banana extract instead of mashed banana?
Not as a replacement. Banana extract adds flavor but removes the moisture and binding that mashed banana provides. Use both: mash banana for structure and add 1/4 teaspoon extract if desired for depth.
What if my brownies come out too cakey?
You likely overmixed the batter, which developed gluten. Next time fold until streaks remain. Also check oven temperature accuracy; true 350F yields fudgier results than higher heat.
How long do baked brownies keep, and can I freeze them?
Keep 5 days at room temperature in an airtight container. Freeze baked, cooled brownies for up to 3 months wrapped individually. Thaw at room temperature 1-2 hours before serving.