01 -
Position oven racks in upper and lower thirds and preheat oven to 175°C. Line 18 cupcake cups in two standard 12-cup muffin tins with baking liners for easy removal.
02 -
Mix the white cake mix according to package directions. Transfer half of the batter into a separate bowl and gently stir in red gel food coloring until a vibrant red is achieved, taking care not to overmix.
03 -
Using a small scoop or spoon, alternate spooning red and white batter into liners until each is approximately half full, creating a swirl effect.
04 -
Bake cupcakes for 18 to 20 minutes, rotating pans halfway to ensure even cooking. Confirm doneness with a toothpick test. Allow cupcakes to cool completely on wire racks before frosting.
05 -
Beat softened butter and kosher salt on medium speed until creamy, about 2 minutes. Gradually add confectioners’ sugar in two additions, mixing thoroughly to avoid graininess. Incorporate heavy cream, vanilla, and peppermint extracts. Continue beating at medium-high speed for 2 minutes until frosting is light, fluffy, and smooth.
06 -
Using a small brush or skewer, paint two thin stripes of red gel food coloring inside a piping bag fitted with a half-inch round tip to produce candy cane stripes upon piping.
07 -
Fill the decorated piping bag with frosting and pipe generous swirls atop each cupcake. Finish with mini candy canes or sprinkle with red and white peppermint sugar for festive texture.