Step 1

Preheat oven to 350° F. Spray donut pan with non-stick cooking spray, set aside.

Step 2

Whisk together dry cake mix, egg, vegetable oil, and water until combined.

Step 3

Pour batter into a large, gallon sized plastic bag and snip off small portion of one corner. Squeeze donut mix into prepared donut pan until cups are about 1/2 full.

Step 4

Bake at 350° F for 12-14 minutes. Let donuts cool in pan for about 5-10 minutes then remove and let cool completely on wire rack.

Step 5

In a medium sized bowl, whisk together butter, powdered sugar, and milk until just combined.

Step 6

Dip the cooled donut about 1/2 way into the glaze then lift and turn sideways to let extra run off. Place back on wire cooling rack.

Step 7

Repeat with remaining donuts.

Step 8

Top with optional sprinkles and enjoy!