Banana Brownies are soft golden bars topped with a fluffy cream-cheese frosting rather than a cocoa brownie. Mashed ripe banana and brown sugar provide moisture, while a single egg and modest baking powder support the crumb. The batter fills a 9×13-inch pan and bakes at 350°F for 30 to 35 minutes. After complete cooling, an eight-ounce cream-cheese frosting is whipped for three minutes and spread over the slab before it is cut into fifteen pieces. The recipe records fifteen minutes of preparation and thirty-five minutes of cooking for a fifty-minute total, with cooling added before frosting.
Banana Brownies Ingredients
For the brownies: 1 & 1/2 cups all-purpose flour; 1/2 teaspoon baking powder; 1/2 teaspoon fine sea salt; 1/2 cup unsalted butter, melted; 1 & 1/2 cups light brown sugar, packed; 3/4 cup mashed banana; 1 large egg; 1 teaspoon vanilla extract.
For the frosting: 8 ounces cream cheese, softened; 1/4 cup unsalted butter, softened; 2 cups powdered sugar; 1 teaspoon vanilla extract.
If you enjoy this recipe, you may also like Boston Cream Pie Fudge.
How to Make Banana Brownies
- Prep oven and pan: Preheat the oven to 350°F. Line a 9x13 baking dish with parchment paper, set aside.
- Mix dry ingredients: In a medium sized bowl, stir together the flour, baking powder, and salt, set aside.
- Mix wet ingredients: Place the melted butter into a large bowl with the brown sugar, mashed banana, egg, and vanilla, whisk until smooth.
- Combine mixtures: Add the flour mixture and stir until combined with no dry patches.
- Bake: Spread the batter into the prepared baking dish. Bake for 30-35 minutes until the edges are golden brown and a toothpick inserted into the center comes out clean.
- Cool: Place the baking dish on a wire rack to cool completely.
- Make frosting: While the blondies are cooling, make the frosting by placing the cream cheese and butter into a large bowl and whip it until smooth with an electric hand mixer. You can also do this with a stand mixer with the paddle attachment.
- Add sugar and vanilla: Add the powdered sugar a little at a time until combined, scrape down the sides as needed. Add the vanilla, turn the mixer on to medium speed and whip for 3 minutes until light and fluffy.
- Frost and serve: Lift the blondies out of the baking dish using the parchment paper to help. Frost them and cut into bars, serve immediately.
For storage details after serving, the USDA leftovers and food safety guidance.
Why the Order Matters
Preheat the oven to 350°F and prepare a 9×13-inch pan. In one bowl whisk one and one-half cups flour, half teaspoon baking powder, and half teaspoon salt. In another bowl combine half cup melted butter, one and one-half cups brown sugar, three-quarter cup mashed banana, exactly one egg, and one teaspoon vanilla. Fold the dry ingredients into the wet mixture only until combined. Spread the batter evenly to every corner of the pan and bake 30 to 35 minutes, until the edges are golden and a toothpick tests clean. Cool the entire slab completely. For frosting, whip eight ounces cream cheese with quarter cup softened butter until smooth. Gradually add two cups powdered sugar, then one teaspoon vanilla, and whip for three minutes until light. Spread over the cold brownie and cut exactly fifteen bars in a 3×5 grid.
If you enjoy this recipe, you may also like Gooey Chocolate Chip Cookie Bars.
Critical Visual and Timing Cues
Measure three-quarter cup mashed banana rather than relying on a number of bananas, since fruit sizes vary. The half-cup butter for the batter must be melted, while the separate quarter cup for frosting should be softened but still solid; staging them avoids a costly swap. Exactly one egg goes into the wet bowl. Fold flour in gently and stop when dry streaks disappear. Level the batter in the 9×13-inch pan so the edges and center finish together. At 30 to 35 minutes, edges should look golden and the toothpick should emerge clean. The slab must feel completely cool before frosting. Beat cream cheese and softened butter smooth before adding sugar, then preserve the full three-minute final whip for a light topping.
Serving and Storage
After frosting, divide the rectangular slab into three rows and five columns for fifteen bars. Chill briefly first if especially sharp frosting edges are desired, then wipe the knife between cuts. Serve cool or at room temperature; a short rest softens both crumb and frosting. Because cream cheese is present, store leftovers covered in the refrigerator. Use parchment between layers if stacking, and do not seal or chill the slab while it is still warm because trapped steam makes the top wet. The unfrosted base can be baked ahead, cooled, and covered, with frosting added closer to service. These bars contain wheat, dairy, and egg. There is no cocoa, chocolate, cinnamon, or nut component in the verified recipe, so those additions would produce a different dessert.
Practical Kitchen Notes
The dry mixture contains one and one-half cups flour with equal half-teaspoon measures of baking powder and salt. Brown sugar is one and one-half cups, matching the flour volume but not its weight. The banana is measured after mashing at three-quarter cup. Keep the brownie butter at half cup melted and the frosting butter at quarter cup softened. Frosting also requires a full eight ounces cream cheese, two cups powdered sugar, and its own teaspoon vanilla. The batter uses a separate teaspoon vanilla and exactly one egg. The official cook value is thirty-five minutes, while the instruction gives a 30-to-35-minute range; inspect at thirty and stop when the golden-edge and clean-toothpick cues are satisfied. Cooling time occurs beyond the recorded fifty-minute total.
Details Worth Preserving
Calling these brownies describes their dense bar format, not a chocolate formula. Preserve the pale banana batter and do not introduce cocoa. Temperature order matters: melted butter enters the batter, the baked slab cools fully, and softened butter enters frosting. The accepted ingredient image visibly separates those butter states and shows one egg; the exact process image concludes with fifteen bars in a 3×5 grid. The original hero remains unchanged and unmoved. The repeated earlier original body image is removed, while the final original serving photograph remains after the ingredient and process images. Responsive derivatives at eligible widths retain each source ratio and orientation and are uploaded directly to R2, never requested through Cloudflare Image Transformations.
Recorded Recipe Tips
- These banana brownies have a cake-like texture with a rich cream cheese frosting.
- Use very ripe bananas for the best flavor and sweetness.
Conclusion
Banana Brownies makes 15 brownie bars in 50 recorded minutes. Preserve every listed quantity, temperature, timing cue, and ordered instruction for the intended result.
Frequently Asked Questions
- → How many servings does Banana Brownies make?
It makes 15 brownie bars and serves 15.
- → How long does Banana Brownies take?
The recipe records 15 minutes of preparation, 35 minutes of cooking, and 50 minutes total.
- → How do I know when the banana brownies are baked?
Bake at 350°F for 30–35 minutes, stopping when the edges are golden and a toothpick inserted near the center comes out clean.
- → Why must the brownies cool before frosting?
Warm bars would melt the cream-cheese frosting; cool the slab completely before spreading the topping and cutting fifteen pieces.