UPSIDE-DOWN APPLE CAKE Serves: 10-12 INGREDIENTS Cake ¾ cup butter, softened 1 ½ cup sugar 3 eggs 1 teaspoon vanilla extract ½ cup milk 1 ½ cup all-purpose flour 1 teaspoon baking powder ¼ teaspoon salt 1 tablespoon cinnamon 4 apples, peeled and cut in