Directions

1. Preheat the oven to 350 degrees F and prepare three KitchenAid® Cake Pans with nonstick baking spray and set aside.
2. In the Ceramic Bowl of your KitchenAid® Stand Mixer, use the flat beater to mix butter, shortening, and sugar on high speed until light and fluffy (about 5 minutes). Next, add eggs and egg whites one at a time to the mixing bowl and beat until well incorporated.
3. In a separate large bowl, sift cake flour, baking powder and salt together. Turn the Stand Mixer to low speed and add the flour mixture to the butter mixer and fully incorporate. Finally, add milk and vanilla extract and finish beating on low until everything is just combined. Make sure to scrape the bottom of the bowl as well.