For the cinnamon swirl Bundt cake, use a 10-cup bundt pan; for the layer cake, use two 9-inch rounds. In a medium bowl, whisk together flour, baking powder, baking soda and salt. In a large bowl ...

To make a three-layer cake like the one in the photograph ... or until smooth. Butter an 8-inch round cake pan (2 inches deep) with the reserved 1/2 teaspoon butter. Pour the cake batter into the pan ...