Preheat oven to 350 degrees F.
Line a cookie sheet with parchment paper; set aside.
In a medium bowl, add cake mix, eggs, and vegetable oil.
Mix until combined. Refrigerate 15-20 minutes. This will make it easier to scoop.
Use a cookie scoop to scoop dough and form a ball. Otherwise, I usually use about 1 1/2 tablespoons dough rolled into a ball.
Place on to cookie sheet 1-inch apart.
Sprinkle tops with a little powdered confectioners' sugar.
Bake in oven 9-11 minutes. Each oven is different but the tops should be slightly golden.
To make the glaze, in a medium bowl, combine water and 1 1/2 cups powdered confectioners' sugar. Mix with a spoon until lumps are gone then use a spoon to drip glaze over the tops of the cookies.