1/2 c. unsweetened cocoa powder
1 t. baking soda
1/2 t. kosher salt (you can use table salt but I like the larger size of kosher)
1/2 c. butter, room temp
3/4 c. packed brown sugar
1 large egg
1 c. semisweet chocolate chips
1 c. coarsely crushed peppermint hard candies (1/4 lb)
Preheat oven to 375 degrees. Line a 13 x 9 inch glass pan with buttered aluminum foil, with a two inch overhang at each end of pan.
Whisk together flour, cocoa powder, baking soda and salt in a small bowl
Beat together butter and brown sugar in a large bowl with an electric mixer at high speed until pale and fluffy, about 3 minutes.
Beat in egg until combined then mix in flour mixture. Stir in chocolate chips and crushed peppermint candy.
Spread dough evenly in pan and bake until puffed and beginning to pull away from sides of pan, about 20 minutes.
Cool completely on rack in pan then lift with foil overhang and transfer to cutting board. Cut into bars and lift off foil with a spatula.
Adapted from Gourmet.