Preheat oven to 350 degrees F. and line baking sheets with parchment paper.
Beat butter and sugars.
Add eggs and vanilla.
Add flour, cocoa powder, pudding mix, baking soda and salt.
Fold in chocolate.
Take a large scoop of dough (approx 1/3 cup) and flatten in your hand.
Lay devil dog in center and encase with dough around it.
Roll into a ball and place 4 on a cookie sheet.
Bake 12-14 mins and cool a few mins on pan before removing to a rack.
Don't over bake, they will set up as they cool.