Easy Oatmeal Bourbon Cookies

"Occasionally in life we run across ideas that we think are too good to be true. Believe me, you'll really enjoy these 'ideal' cookies - they are delicious and so easy to make!"

1 c. margarine, softened
½ c. packed brown sugar
1 egg
¼ c. water
1 yellow cake mix
3 Tbsp. Maker’s Mark bourbon
3 c. quick cooking oats
1 c. nuts, chopped