Freeze the unfrosted cookie in a tightly covered container for up to 2 months. Just before you want to enjoy your cookie pizza, thaw, frost and decorate.
Looking for an even easier way to make this cookie pizza? Mix a 19.8-ounce box of Betty Crocker® fudge brownie mix as directed on the box; spread batter in greased pizza pan. Bake at 350ºF about 30 minutes or until center is set; cool. Spread with a container of Betty Crocker® Whipped chocolate ready-to-spread frosting instead of the chocolate mixture.