Luscious Banana Layer Cake

A proper two-layer banana cake made from scratch with the creaming method, cake flour, and ripe mashed bananas. This is not banana bread dressed up as cake. It’s a genuinely light, tender layer cake with banana flavor woven through a fine, velvety crumb.

Triple-sifting the flour with the leavening and salt is old-school technique that aerates the dry ingredients and ensures perfectly even distribution of the baking powder and soda. That extra air translates directly into a lighter crumb. Cake flour (not all-purpose) keeps the texture soft and delicate rather than dense.

The batter uses sour milk, which reacts with the baking soda for extra lift and adds a subtle tang that balances the sweetness of the bananas. Alternating the dry ingredients and milk into the creamed butter prevents the batter from breaking and keeps everything smooth.

Pro Tips

• Use very ripe bananas with brown spots. They’re sweeter, more aromatic, and mash smoother than yellow bananas.
• Cream the butter and sugar until genuinely light and fluffy. This takes 3-5 minutes and is where the cake gets its structure.
• Alternate flour and milk in small additions, starting and ending with flour. Dumping it all in at once deflates the creamed butter.
• Don’t have sour milk? Add a splash of vinegar or lemon juice to regular milk and let it sit 5 minutes.

Variations

• Frost with cream cheese frosting for a classic banana cake pairing.
• Add chopped walnuts or pecans to the batter for crunch.
• Layer with sliced bananas and whipped cream between the layers for a banana cream layer cake.