Cannoli Cake

For the cake: Mix 2¼ cups cake flour, 1½ cups sugar, 2 teaspoons baking powder, ½ teaspoon salt, and ¼ teaspoon baking soda. Beat in ¾ cup butter until the mixture is crumbly. Whisk together ¾ cup milk, 3 egg whites, 3 tablespoons sour cream, and 1½ teaspoons vanilla. Add the wet mixture to the dry batter and mix until smooth. Bake in 3 greased 8-inch pans at 350°F for 12-15 minutes. Let cool.

For the frosting: Beat 1 cup drained ricotta and 1 cup mascarpone together. Add ¾–1 cup powdered sugar and lots of vanilla, mixing well. Fold in mini chocolate chips.

To assemble: Layer the cooled cake with the frosting, then chill before serving.