Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 325°F (163°C) and line a 12-cup muffin tin with cupcake liners.
- Whisk together the dry ingredients: cake flour, baking powder, baking soda, and salt in a medium bowl.
- In another bowl, mix the wet ingredients: whole milk, sour cream, and vanilla extract.
- Cream the unsalted butter and granulated sugar together until light and fluffy, about 3–4 minutes.
- Add egg whites to the mixture and combine until smooth.
- Gradually mix in the dry ingredients and wet ingredients alternately until just combined.
- Spoon the batter into the cupcake liners, filling each about ¾ full, and bake for 20-22 minutes.
- Cool the cupcakes in the tin for 5 minutes, then transfer to a wire rack.
- Prepare the buttercream by beating together unsalted butter and powdered sugar until crumbly.
- Add whole milk and vanilla extract, mixing until smooth and adjusting consistency if needed.
- If desired, mix in red gel food coloring for a splash of color.
- Frost the cooled cupcakes using a piping bag, working from the outer edge inward.
Nutrition
Notes
Make sure to let the cupcakes cool completely before frosting to prevent melting.
