A supremely moist banana cake packed with real banana flavor, subtle caramel notes from brown sugar, and a touch of cinnamon. Topped with tangy cream cheese frosting for the ultimate decadent treat. Perfect for potlucks, family gatherings, or any day you need a crowd-pleasing dessert.
Preheat oven to 350°F (175°C). Grease a 9x13-inch pan (or two 9-inch rounds) and line with parchment (optional).
Mash bananas with lemon juice until mostly smooth (small chunks OK). Set aside.
Whisk flour, baking soda, salt, and cinnamon in a medium bowl.
Beat butter, granulated sugar, and brown sugar until light and fluffy (~2–3 minutes).
Add eggs one at a time, then vanilla.
Alternate adding dry ingredients and buttermilk (start/end with dry). Mix just until combined.
Fold in mashed bananas.
Pour into prepared pan(s). Bake 30–35 minutes (9x13) or 25–30 minutes (rounds) until toothpick comes out clean or with moist crumbs.
Cool in pan 10 minutes, then fully on wire rack.
For frosting: Beat cream cheese and butter until smooth. Add vanilla/salt, then gradually powdered sugar. Add cream if needed for spreadability.
Frost cooled cake. Garnish with nuts, banana slices (add just before serving a slice, or cinnamon.
Notes
Use very ripe bananas for best flavor/moisture.
Room-temp ingredients help emulsify and lighten cake.
Store frosted cake in fridge up to 4–5 days; bring to room temp before serving.
Unfrosted layers freeze up to 2 months.
Using Frozen Bananas:
Frozen bananas work great—freezing concentrates flavor!
Thaw in colander, drain excess brown liquid (~¼ cup from 3–4 bananas).
Mash drained bananas to 1½ cups.
Optional: Substitute drained liquid for equal amount of buttermilk (e.g., 1¼ cups buttermilk + ¼ cup banana liquid) to keep moisture perfect without over-wetting batter.