Best Banana Cake Recipe — How To Make Banana Cake

Ingredients

• Cooking spray
• 3/4 (1 1/2 sticks) butter, softened
• 1/2 c. granulated sugar
• 1/2 c. packed brown sugar
• 3 eggs
• 3 ripe bananas, mashed
• 3/4 c. sour cream
• 1 tsp. pure vanilla extract
• 3 c. all-purpose flour
• 1 tbsp. cornstarch
• 1 tsp. baking soda
• 1/2 tsp. ground cinnamon
• 1/2 tsp. kosher salt
• 1 (8-oz.) block cream cheese, softened
• 1/2 c. (1 stick) butter, softened
• 4 c. powdered sugar
• 1/4 c. heavy cream
• 1 banana, sliced intro coins for garnish
• 1/2 c. walnuts, roughly chopped