A Cosmic Brownie Batter M&M Stuffed Cookie. A rich brownie batter cookie base packed with Cosmic® Brownies, mini M&M'S® candies, Mother's® Elf Cookies, and semi-sweet chocolate chips. Stuffed with chocolate ganache and an M&M cookie dough truffle. Dipped in milk chocolate and topped with Cosmic rainbow chips and extra M&M'S® candies.