1 pkg. white cake mix
1 c. water
1/3 c. oil
1 1/4 c. peanut butter sandwich cookies, coarsely crushed

FROSTING:

1/2 can vanilla frosting
1/2 c. creamy peanut butter
2-3 tbsp. milk

Heat oven to 350 degrees. Grease 9x13 inch pan. Combine cake mix, water, oil, and eggs at a low speed until moistened. Beat 2 minutes at high speed. Slowly add crushed cookies. Pour batter into a greased pan and bake 30-40 minutes.