Banana-Raspberry Cake with Lemon Frosting

INGREDIENTS

• Cooking spray
• 1 tablespoon all-purpose flour
• 1 1/3 cups granulated sugar
• 1/4 cup butter, softened
• 3 large eggs
• 1 3/4 cups all-purpose flour
• 2 teaspoons baking powder
• 1/2 teaspoon salt
• 1 cup low-fat buttermilk
• 1 cup mashed ripe banana (about 2 bananas)
• 1 teaspoon vanilla extract
• 3/4 cup (6 ounces) 1/3-less-fat cream cheese, chilled
• 2 tablespoons butter, softened
• 2 teaspoons grated lemon rind
• 1/2 teaspoon vanilla extract
• Dash of salt
• 2 1/2 cups powdered sugar, sifted
• 1 1/2 cups fresh raspberries (optional)