In a large mixing bowl cream together butter and sugar. Add eggs and vanilla and blend well. Stir in cocoa, baking powder, baking soda. One half cup at a time, add flour.
Preheat your oven to 350 degrees.
Once ingredients are all blended, roll a silver dollar size dough ball into a smooth sphere, slightly flatten and dip into a bowl of sprinkles. Place on a baking sheet. Bake for 15 minutes.
As soon as the cookies come out of the oven, press an unwrapped Hershey’s Kiss into the center and move the cookie to a cooling rack.