Cake Mix Rolled Sugar Cookies

Heat oven to 375°F (350°F for dark or nonstick cookie sheets). In large bowl, stir cake mix, melted butter, vanilla and egg until well blended.

On floured surface, roll dough 1/4 inch thick; cut into desired shapes with 2 1/2-inch cookie cutters. Reroll dough, and cut additional shapes. Place cutouts 2 inches apart on ungreased cookie sheets.

Bake 6 to 8 minutes or until edges are light golden brown. Cool 1 minute; remove from cookie sheets to cooling racks. Cool completely, about 30 minutes.

In custard cup, stir together small amount of water and food color to thinner consistency. Set aside. In microwavable bowl, microwave frosting uncovered on High 10 to 15 seconds or until looser texture; stir. Working with 1 cookie at a time, spread warm frosting on cookie. Using photo as a guide, paint or place small dots of color on frosted cookie. Swirl the color with food-safe paintbrush or toothpick to create marbled design. Repeat frosting and marbling with remaining cookies. If frosting has cooled too much, reheat as needed.

Let stand about 4 hours or until set. Store covered in airtight container at room temperature with waxed paper between layers.