In a medium bowl, mix the cake mix, eggs,oil and water with a hand mixer until smooth. The batter will be thick, like cookie dough. Scrape down the sides with a spatula to make sure that everything is mixed together.
Stir in by hand the chocolate chips and walnuts until evenly distributed
Place by teaspoonful on a greased baking sheet
Bake 10 - 12 minutes at 350 degrees
Remove from the oven and tap bottom of the baking sheet on the counter to set the cookies. Let cookies cool at least 5 minutes before removing to a cooling rack