Preheat oven to 350℉. Grease a 9 x 9 pan and set aside.
In a mixing bowl combine cake mix, oil, water, and egg. The batter will be thick. Spread batter evenly into the prepared pan.
1 box Devil's Food cake mix , ¼ cup Vegetable Oil, ¼ cup Water, 1 large Egg
Sprinkle with crushed cookies over the top of the batter, gently pressing them into the batter.
1 cup Crushed Mint Oreos
Bake for 25 – 30 minutes or until a toothpick inserted in the center comes out clean.
Once cool, make the glaze and drizzle over the bars. Cut into squares and serve.
1 cup Powdered Sugar, 1-2 tablespoons Milk