Chocolate Peppermint Cookies

Sift together flour, cocoa powder, baking soda, and salt. Set aside.

In the bowl of an electric mixer fitted with the paddle attachment, beat butter, 2 cups sugar, and eggs on medium speed until light and fluffy, about 2 minutes. Add vanilla, and mix to combine. Gradually add dry ingredients, and combine with the mixer on low speed. Mix in crushed peppermint candy. Cover with plastic wrap, and chill until dough is firm, about 1 hour.

Preheat the oven to 350 degrees. Line baking sheets with Silpat baking mats. Roll dough into 1-inch balls. Dip the top of each ball into sugar. Place on prepared baking sheets about 1 1/2 inches apart. Bake until set, about 8 minutes. Cool on baking sheets for 5 minutes before transferring to a wire rack to cool completely. Frost if desired!