1 yellow cake mix
1/2 cup (1 stick) unsalted butter, room temperature
1/2 teaspoon vanilla
8 oz. cream cheese, room temperature
green food coloring
confectioners' sugar, for rolling
Beat butter, vanilla, egg, and cream cheese until fluffy. Add cake mix and mix until combined. Tint with food coloring to desired "greeness". Chill in the refrigerator for 30 minutes. Preheat oven to 350 degrees. Roll into heaping tablespoon size balls and coat in confectioners' sugar. Place on cookie sheet about 2-inches apart and bake for 10-12 minutes. While still warm, push eyeballs into cookies as desired.