Prep & Preheat:
Preheat oven to 350°F (175°C).
Grease and flour two 8-inch round cake pans or line with parchment paper.
Make the Cake Batter:
Dry Mix: Whisk together flour, baking soda, baking powder, salt, and cinnamon in a bowl.
Cream Butter & Sugar: In a large bowl, beat butter and sugar until light and fluffy.
Add Wet Ingredients: Mix in eggs one at a time, then vanilla and mashed bananas.
Combine: Alternate adding the dry mix and buttermilk (start and end with dry ingredients). Mix just until combined—don’t overmix!
Bake & Cool:
Divide batter evenly between pans and smooth tops.
Bake for 25–30 minutes, or until a toothpick comes out clean.
Cool in pans for 10 minutes, then transfer to a wire rack to cool completely.
Make the Frosting:
Beat cream cheese and butter until smooth.
Gradually add powdered sugar, then vanilla and salt. Whip for 2–3 minutes until fluffy.
Assemble & Decorate:
Frost cooled cake layers, stacking evenly.
Optional: Garnish with sliced bananas, chopped nuts, or a cinnamon sprinkle.