Banana Walnut Cake with Brown Butter Cream Cheese Frosting
This banana walnut cake is perfectly moist, full of flavor (thanks brown butter!), filled with texture from the toasted walnuts, and the perfect recipe for using ripe bananas. I use brown butter in the batter and in the frosting on top, and it’s so good. The notes of caramel pair perfectly with the banana and the tang of the cream cheese keeps it from being overly sweet.
Recipe Snapshot
- The best texture: The cake stays moist for days.
- Uses ripe bananas: It’s a great way to use up two large ripe bananas.
- Freezer-friendly: This cake freezes beautifully, so you can enjoy it anytime.
- Customizable frosting: While the brown butter cream cheese frosting is incredible, you can switch it up with chocolate frosting, classic cream cheese, or any favorite topping!
The Brown Butter
Brown butter is a simple but really effective way to bring extra depth to recipes. You toast the milk solids in butter which brings out a rich caramelly flavor.
- How to make brown butter:
- Place your butter in a light-colored pan so you can see the color change. Heat it gently over medium heat.
- Stir often as it melts, foams, and then begins to turn golden. You’ll see tiny brown flecks forming on the bottom of the pan.
- Once it smells caramalized and is amber-colored, remove it from the heat and pour it into a heat-proof bowl then let cool down.
- If you leave the brown butter in the hot pan, the residual heat can continue to cook the butter and could burn the milk solids.
Method
- Make the brown butter and pour it into a large heat proof bowl to cool until it’s just lukewarm.
- Mash the bananas until smooth and add to the cooled butter. Add the sugar, eggs, and vanilla. Mix until combined.
- In a separate bowl, whisk together the flour, baking soda, and salt.
- Add the dry ingredients to the wet ingredients and mix gently until just combined. Be careful not to overmix to keep the cake tender.
- Gently stir in toasted walnuts.
- Pour the batter into a prepared cake pan and bake until the top is golden and a toothpick inserted in the center comes out clean. Let the cake cool completely before frosting.
Make the Frosting
- Begin by browning the butter as you did for the cake batter. Let the browned butter cool, then transfer it to the refrigerator to chill until it becomes firm but it can still be pressed with a finger and leave an indent. It shouldn’t be overly cold and solid or it will be difficult to whip.
- Once the butter is ready, beat it until creamy, then beat again with cream cheese until smooth. Gradually add powdered sugar and milk and mix until the frosting is fluffy and well combined.
- Once the cake is fully cooled, spread the frosting generously over the top.
Variations
- Chocolate chips: You can replace the walnuts (some or all) with dark chocolate chips for a chocolatey twist.
- Spices: I love it without spices so the banana and brown butter shine through, but the cake does pair well with spice. You can add a teaspoon of cinnamon or a pinch of nutmeg to the batter.
Storing Instructions
- Room temperature: Unfrosted cake stays fresh for 2 days in an airtight container. Refrigerate the frosted cake.
- Refrigerate: Store frosted cake for up to 5 days in the fridge and bring to room temperature before serving.
- Freeze: Wrap unfrosted cake for up to 3 months or frosted cake for 2 months. Thaw in the fridge overnight.
More recipes
Banana Walnut Cake
Ingredients
- 130 g walnut halves
- 145 g unsalted butter
- 280 g bananas ripe
- 150 g soft brown sugar
- 50 g granulated sugar
- 2 large eggs
- 1 teaspoon vanilla paste or extract
- 190 g all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
- 120 g greek yogurt or use buttermilk or sour cream
- 60 g milk at room temperature
Frosting
- 75 g unsalted butter
- 115 g full-fat block style cream cheese room temperature
- 180 g powdered sugar
- ½ teaspoon vanilla paste or extract
- ¼ teaspoon salt
- 1 tablespoon cream or milk as needed
Instructions
- Preheat the oven to 350°F (180°C). Grease and line an 8-inch round, 3-inch deep cake pan with parchment paper.
- Toast the walnuts in a dry pan over medium heat, stirring frequently until fragrant. Remove from the pan and let them cool completely before using.
- In a light-colored pan, melt the butter over medium heat. Stir frequently as it foams and begins to brown, with nutty-smelling milk solids forming at the bottom. Once browned, pour into a heatproof bowl and let it cool until lukewarm.
- Mash the bananas and add to the cooled butter. Add the sugar, eggs, and vanilla. Mix until combined.
- Whisk together the flour, baking powder, baking soda, and salt in a separate bowl.
- Add the dry ingredients to the bowl with the wet ingredients and mix gently with the milk until just combined. Fold in the toasted walnuts.
- Pour the batter into the prepared pan and bake for 45-55 minutes until a skewer inserted into the cake comes out clean.
- Once baked, let the cake cool for 10 minutes in the pan then run a butter knife along the edge to release it from the sides of the pan, and carefully invert it onto a cooling rack to remove the pan.
Frosting
- While the cake is baking, make the brown butter for the frosting. In a light-colored pan, melt the butter over medium heat. Stir frequently as it foams and begins to brown, with nutty-smelling milk solids forming at the bottom. Once browned, pour into a heatproof bowl and let it cool for 15 minutes, then place in the fridge to cool further until it's firmed up, but if you press a finger in it should feel like softened room temperature butter.
- With an electric mixer, whisk the butter until creamy. Add cream cheese and whisk again until smooth.
- Add in the powdered sugar, vanilla and milk or cream and start on low speed to combine, then turn up the speed and whip until creamy.
- Once the cake has completely cooled, spread on the frosting and garnish with extra walnut pieces.
Notes
Storing Instructions
- Room temperature: Unfrosted cake stays fresh for 2-3 days in an airtight container. Refrigerate the frosted cake.
- Refrigerate: Store frosted cake for up to 5 days in the fridge and bring to room temperature before serving.
- Freeze: Wrap unfrosted cake for up to 3 months or frosted cake for 2 months. Thaw in the fridge overnight.