Cocoa Ripple Cake Recipe | Valerie Bertinelli | Food Network

Ingredients

• Nonstick cooking spray, for the pan
• 1 1/2 cups all-purpose flour
• 2 teaspoons baking powder
• 1/2 teaspoon kosher salt
• 2 tablespoons cocoa powder
• 1/3 cup chopped walnuts
• 1 cup granulated sugar
• 1/2 cup (1 stick) unsalted butter, at room temperature
• 2 large eggs, at room temperature
• 2 teaspoons vanilla extract
• 2/3 cup whole milk, at room temperature
• Confectioners’ sugar, for serving