Step 1

Preheat oven to 350º F. Prepare three 9-inch round cake pans with nonstick baking spray or coated well with shortening or butter and floured, taking care to remove all excess flour.

Step 2

Cream together butter and shortening until light and fluffy with an electric mixer. Slowly add sugar one cup at a time, making sure to fully incorporate each cup before adding another. Add eggs one at a time, making sure to fully incorporate each egg before adding another.

Step 3

Sift together flour, baking powder, and salt. Pour milks and vanilla into measuring cup and whisk together with a fork. Add to butter and shortening mixture alternately with milk mixture, beginning and ending with dry ingredients.

Step 4

Gently stir all ingredients until well combined. Stop mixer and scrape down sides and bottom of bowl, making sure to have all ingredients mixed well.

Step 5

Evenly distribute cake batter between cake pans and place pans into oven. Bake for 25-30 minutes, or until a toothpick or cake tester inserted in the center comes out clean. Remove and allow to cool slightly in cake pans for about 5 minutes, then cool completely on a wire rack.

Step 6

Frost cake as desired.