Preheat the oven to 350 degrees F. Line a baking sheet with parchment paper.
In the bowl of an electric mixer, combine the butter and sugar. Beat together on medium-high speed until light and fluffy. Blend in the eggs one at a time, scraping down the bowl as needed. Mix in the cocoa powder until well blended.
Add the flour, salt, and baking powder to a medium bowl. Mix in slowly to wet ingredients. Fold in the chocolate chips, mallow bits, and crushed graham crackers.
Roll dough into a ball then flatten about the size cookie you would like. Bake for 15 minutes. Remove to wire rack. Add more cracked graham crackers and mallow bits while the cookies are still warm. Cool on rack.
