01 -
Preheat oven to 350°F and line two muffin tins with cupcake liners.
02 -
In a medium bowl, whisk together the cake flour, granulated sugar, baking powder, baking soda, and salt until evenly combined.
03 -
Add buttermilk, milk, vanilla extract, and vegetable oil to the dry mixture and beat with a stand or hand mixer just until blended.
04 -
In a separate bowl, whip the egg whites to medium-stiff peaks, then gently fold them into the batter to maintain airiness.
05 -
Scoop batter into cupcake liners filling each about two-thirds full. Bake for 20-22 minutes, or until a toothpick inserted comes out clean and tops spring back when pressed.
06 -
Combine butter, powdered sugar, milk, vanilla extract, and salt in a stand mixer bowl. Beat on high speed for 10-15 minutes until the frosting becomes white and fluffy.
07 -
Once cupcakes are completely cooled, frost them as desired to create festive Halloween designs.