Go Back Email Link
+ servings
Banana Cake with Salted Vanilla Buttercream Frosting

Banana Cake with Salted Vanilla Buttercream Frosting

Jacklin Altman
This banana cake tastes like banana bread, topped with a sweet and salty frosting that's sure to wow. Recipe is for 1 9" round (half cake as stated above), double cake and frosting recipe for a full 9" layer cake.
0 from 0 votes
Prep Time 40 mins
Cook Time 40 mins
Cooling Time 1 hr
Course Dessert
Cuisine American
Servings 6
Calories 381 kcal


  • Mixing Bowls
  • Stand Mixer
  • Cake Pans
  • Oven


  • 2 small overripe bananas mashed (about 3/4 cup)
  • 1 cup all purpose flour
  • 1/4 cup granulated sugar
  • 1 medium egg
  • 3 tbsp canola oil
  • 1/2 tsp baking soda
  • 1/2 tsp baking powder
  • 1/2 tsp salt
  • 1/2 tsp vanilla extract
Salted Vanilla Buttercream:
  • 1/4 cup butter softened to room temp
  • 2 cups powdered sugar
  • 1/2 tsp vanilla
  • 1 tbsp milk
  • 1/2 - 1 tsp salt start with less, taste as you go


  • Preheat oven to 350F
  • Mash bananas thoroughly, and mix with egg, oil, and vanilla in a bowl
  • In a separate mixing bowl, whisk together flour, sugar, baking soda, baking powder, salt
  • Combine wet and dry ingredients and whisk together until fully combined
  • Pour batter into a greased 9" cake pan and bake for 35-40 minutes (until a toothpick comes out clean)
  • Let cake cool completely before frosting.
  • While it cools, start on your frosting. Combine butter and powdered sugar and vanilla in a stand mixer and beat with a whisk attachment on medium speed until combined.
  • Add milk 1/2 tbsp at a time to get ideal consistency. Add salt last, tasting as you go, ensuring that it's the right level of sweet and salty for you.
  • To complete a half cake, cut the round in half, frost one side, stack the other side on top creating a half moon shape, and frost the outside. Then, just slice and enjoy!
  • Store in an airtight container in the fridge for up to 4 days. Let come to room temp before serving.


Calories: 381kcalCarbohydrates: 74gProtein: 4gFat: 8gSaturated Fat: 1gCholesterol: 29mgSodium: 925mgPotassium: 187mgFiber: 2gSugar: 53gVitamin A: 81IUVitamin C: 3mgCalcium: 43mgIron: 1mg
Keyword Cake, dessert, banana bread, banana, buttercream, frosting
Tried this recipe?Add your thoughts below in the comments or post on social media and tag @foodbythegram!