Ingredients
Method
Preheat the Oven
- Preheat your oven to 350°F (177°C) and line a 12-count muffin pan with cupcake liners.
Whip the Egg Whites
- In a medium bowl, beat the egg whites on high speed until soft peaks form, about 2-3 minutes. Set aside.
Prepare the Dry Ingredients
- Sift together the all-purpose flour and cornstarch, then whisk in the baking soda, cocoa powder, and salt. Set aside.
Cream the Butter and Sugar
- Beat the softened butter on high speed until smooth, about 1 minute. Add the sugar and continue to beat for another 2 minutes.
Mix in the Oils and Yolks
- Add the oil and mix on high for another 2 minutes. Then add the egg yolks and vanilla, beating until combined.
Add Vinegar and Food Coloring
- Add the distilled white vinegar and red food coloring, mixing until desired color is achieved.
Combine the Wet and Dry Ingredients
- With the mixer on low, add the dry ingredients in three installments, alternating with the buttermilk, mixing just until combined. Fold in the whipped egg whites.
Fill the Cupcake Liners
- Spoon the batter into cupcake liners, filling them halfway. Bake for about 20-21 minutes, until a toothpick comes out clean.
Cool and Frost
- Let cupcakes cool in the pan for 5 minutes, then transfer to a wire rack to cool completely. Frost with cream cheese frosting before serving.
Notes
For a deeper red color, adjust the amount of red food coloring. Ensure your mixing bowl is clean for whipping egg whites.
