Ingredients
Method
Steps
- Preheat oven to 350°F (177°C) and grease a 9×13‑inch pan.
- Whisk flour, baking powder, baking soda, and a pinch of salt together.
- Cream butter with both sugars until light, then add eggs one at a time followed by vanilla.
- Mix in mashed bananas, then alternately add flour mixture and buttermilk, mixing just until combined.
- Pour batter into the pan and bake 45 minutes, or until a toothpick exits clean.
- While the cake cools, beat cream cheese, butter, vanilla, and powdered sugar into a smooth frosting; spread over cooled cake and chill 30 minutes before serving.