Preheat oven to 350°F/177°C. Spray with non-stick cooking spray a donut baking pan.
In a bowl, mix together cake mix, egg, oil and water.
Pour into prepared pan. Bake for 10-12 minutes or until set. Set aside to cool.
In a bowl, mix together confectioner’s sugar, milk, vanilla and food coloring until smooth.
Carefully dip donuts into prepared glaze, or pour the glaze over the donut. Top with cookie crumbs then drizzle with melted chocolate.