Ingredients
Equipment
Method
Preparation Steps
- Preheat the oven to 325°F (165°C) and prepare a muffin tin with cupcake liners.
- In a medium bowl, whisk together cake flour, baking powder, baking soda, and salt.
- In a separate small bowl, mix whole milk, sour cream, and vanilla extract until well blended.
- In a large mixing bowl, cream together the softened unsalted butter and granulated sugar until light and fluffy.
- Gradually add egg whites, mixing well after each addition.
- Alternately add dry and wet mixtures to the butter-sugar mix until just combined.
- Fill cupcake liners about three-quarters full and bake for 20-22 minutes.
- Let the cupcakes cool in the tin for 10 minutes, then transfer to a wire rack.
- For the buttercream, beat softened unsalted butter and sifted powdered sugar until creamy.
- Gradually add vanilla extract and whole milk, mixing until fluffy. Optionally, add red gel food coloring.
- Frost the cooled cupcakes using a piping bag, swirling the buttercream on each.
Nutrition
Notes
For best results, soften butter at room temperature and avoid over-mixing the batter for light cupcakes.
