Soft Sugar Cookies with Yellow Frosting

These are like the ones you buy at the grocery store (Walmart!)

found them here http://www.tablespoon.com/recipes/soft-sugar-cookies-with-yellow-frosting-recipe/2/

Ingredients
COOKIES
1 box Betty Crocker® Super Moist® white cake mix
1/3 cup vegetable oil
4 egg whites
FROSTING
3 cups powdered sugar
1/3 cup shortening
1/4 cup milk
1/2 teaspoon vanilla
1/8 teaspoon yellow gel or paste food color
1/4 cup candy sprinkles
Directions
1Heat oven to 375°F (350°F for dark or nonstick cookie sheets). Line 2 cookie sheets with parchment paper. 2In large bowl, mix cake mix, oil, and egg whites with spoon until dough forms. 3Onto parchment paper-lined cookie sheets, drop dough by rounded tablespoonfuls 3 inches apart.4Bake 8 to 9 minutes or until puffed and almost no indentation remains when touched. Cool 1 minute; before removing from cookie sheet. Cool completely, about 30 minutes.5In medium bowl, mix powdered sugar and shortening with spoon. Stir in milk and vanilla until smooth. If necessary, stir in additional milk, a few drops at a time, until smooth and spreadable.6Generously frost cookies using rounded tablespoonfuls of frosting. Immediately decorate with sprinkles; pushing in gently if necessary to make sure they stick to the frosting. Store loosely covered.