Homemade Banana Layer Cake

This two-layer banana cake gets its moisture from ripe mashed bananas and buttermilk working together. The result is a tender, fragrant crumb that stays soft for days, not the dense, heavy texture you sometimes get with banana baked goods.

Using both baking powder and baking soda gives the cake a lighter rise than either leavener alone. The baking soda reacts with the acid in the buttermilk and banana, while the baking powder provides additional lift. That double action is why the layers come out tall and even.

Beating the batter for a full three minutes on medium speed after combining everything is what develops the structure. It sounds like a lot, but that beating time is what gives you a cake with a fine, even crumb instead of a coarse, crumbly one.

Shortening instead of butter keeps the cake extra moist. Butter tastes richer, but shortening holds moisture longer, which matters in a layer cake that might sit out for a day or two.

Kitchen Tips

• Use very ripe bananas with heavy brown spotting. Green or yellow bananas don’t have enough sugar or moisture to flavour the cake properly.
• Cool 10 minutes in the pan before inverting onto a rack. Too soon and the cake tears. Too long and it sticks.
• Cool completely before frosting. Warm layers melt frosting on contact and you end up with a sliding mess.

Variations

• Cream cheese frosting: Pair with a tangy cream cheese frosting for the classic banana cake combination.
• Chocolate banana: Frost with chocolate buttercream for a chocolate-banana pairing that’s hard to beat.
• Caramel drizzle: Skip the frosting and drizzle warm caramel sauce between and over the layers for a simpler finish.