Step 1

Preheat oven to 350°F. Grease two 8-inch round pans. Whisk flour, baking soda, and salt.

Step 2

Beat butter and sugar until creamy. Add eggs and vanilla. Mix in bananas and sour cream.

Step 3

Add dry ingredients to wet. Fold in walnuts and chocolate chips.

Step 4

Divide batter between pans. Bake 30-35 minutes until done.

Step 5

Cool completely. Layer with custard, top with banana slices and walnuts.