Preheat the oven to 350 and line three cookie sheets with parchment paper.

Sift together the flour, cocoa, soda, and salt. Set aside.

In the bowl of a stand mixer with a paddle attachment, beat together the butter and sugar.  Next, beat in the vanilla and egg.

Add flour mixture to the creamed butter on low speed, and mix until just combined.  Beat in the chocolate chips, dried marshmallows, and peppermint bits.

Spoon a 2-tablespoon scoop to portion the dough on to the cookie sheet.  Add dried marshmallows on top.

Bake for 10 minutes until just done.  Let cool completely on a wire rack.