CAKE: 1 box yellow cake mix 1 (3.4 oz.) pistachio pudding 3 eggs 1 cup oil 1 cup milk green food coloring. Preheat oven 350F. Spray 9x13 pan. Combine dry cake mix and pudding. Add eggs, oil and milk. Add 8 drops of green food coloring. Bake for about 25-30 minutes.