freezer resealable bag (for crushing peppermint hard candy by hand) (alternatively use a food chopped)
a mallet or rolling pin to chop the peppermint candy if crushing by hand
Ingredients
Cupcakes
⅔cupsour cream, room temperature
¾cupbuttermilk, room temperature
1tablespoonvanilla extract
1teaspoonpeppermint extract
4largeegg whites, room temperature
⅓cupvegetable oil
(1)15-16-ounce boxwhite cake mix
Buttercream Frosting
3tablespoonsvery finely crushed peppermint hard candy(or crush your own peppermint candy)
3stickssalted butter, softened
½teaspoonvanilla extract
½teaspoonpeppermint extract
4tablespoonsheavy cream
5cupspowdered (icing) sugar
Instructions
Cupcakes
Preheat oven to 325°F. Place cupcake liners in muffin pans. (If using baking cups, place them on a rimmed baking sheet.)
In a large mixing bowl, whisk together the sour cream, buttermilk, vanilla, peppermint extract, eggs, and vegetable oil until smooth. Then sift in the cake mix and stir until just mixed. Be careful not to overmix. Do not skip sifting the cake mix to prevent lumps in the batter.
Using a cookie scoop, divide the batter between the cupcake liners or baking cups.
Bake time for cupcake liners in a muffin pan: 17 minutes or until lightly browned, and they spring back when touched in the middle. If using baking cups, bake 20-25 minutes or until cupcakes are lightly browned and a toothpick inserted into the center comes out clean or with crumbs. Do not overbake. After 5 minutes, move the cupcakes to a cooling rack. Cool before frosting.
Buttercream Frosting
If crushing peppermint hard candy: place the candy in a plastic resealable bag, then use a rolling pin or meat mallet to finely crush it. Larger pieces will have trouble passing through the piping tip. Set aside.
Use an electric mixer to beat the butter, vanilla, and peppermint extract until creamy.
Add the cream to the butter and beat until mixed. Then add the powdered sugar a cup at a time, stirring first, and then beat between each addition. If the frosting is too stiff, add more cream. If too soft, add more sugar. Then add the finely crushed peppermint and mix well.
Use a piping bag and a large star tip to pipe frosting onto the cupcakes. Make a circle of frosting around the outside of the cupcake top, then continue circling, moving in closer to the middle with each circle. This will make the frosting taller in the middle of the cupcake.