Chocolate peppermint cookies have a rich peppermint chocolate cookie base topped with whipped white chocolate peppermint frosting. Drizzle with white chocolate and crushed candy cane pieces.
Cream together the softened unsalted butter, white sugar, and brown sugar until smooth and slightly fluffy.
Add the egg and peppermint extract. Mix until fully combined.
Add the flour, cocoa powder, cornstarch, baking powder, baking soda, and salt, and mix. Add mini chocolate chips and mix until just combined.
Scoop the dough using a 1½ tablespoon cookie scoop and place them onto a lined baking sheet 1" apart. Chill the scooped cookie dough mounds for 1 hour.
Bake at 400°F for 12-13 minutes, or until the edges are set and the centers are slightly underdone.
Allow cookies to cool completely before frosting.
White Chocolate Peppermint Frosting
Melt white chocolate bars in the microwave, stirring every 30 seconds, until smooth.
Beat the butter until smooth and creamy, 2-3 minutes with a whisk attachment. Add the melted white chocolate, milk, vanilla extract, peppermint extract, and salt. Beat until smooth.
Slowly add powdered sugar. Beat the frosting for 2-3 more minutes until it is fluffy.