Use 1/2 ingredients called for on cake mix box.
Mix cake mix as directed on box.
Add walnuts and mix well.
If mixture is too stiff, add milk to thin.
Lightly grease cookie sheet; spoon onto cookie sheet.
Use heaping teaspoonfuls and drop on cookie sheet, leaving ample room between cookies so they don't run together.
Bake in 325° oven until brown.