Ingredients
Equipment
Method
- Preheat oven to 350°F (175°C). Grease and line a 9x13-inch baking pan.
- Whisk flour, baking powder, baking soda, salt, and cinnamon in a bowl.
- Beat butter, oil, and sugar until light and fluffy.
- Add eggs one at a time, then vanilla.
- Mix in mashed bananas until combined.
- Alternate adding dry ingredients and buttermilk, mixing gently.
- Bake 35–40 minutes until a toothpick comes out clean. Cool completely.
- Beat cream cheese and butter, then add powdered sugar, vanilla, and salt.
- Frost cooled cake and slice to serve.
Notes
Use very ripe bananas for best flavor and moisture.
