In this video, we'll show you how to make Brookies, which are just what you think, a delicious, genius fusion of brownies and chocolate chip cookies. We make both from scratch, but you can certainly use pre-made or box mixes here. Layer cookie dough on the bottom of a pan and then pour on the brownie batter. Bake until set and then test all of your patience while these dessert bars cool completely. Get the recipe for Brookies (Brownie Cookies).