These are enormous cookies, crisp Tollhouse that surround a huge center of fudge brownie – almost like a giant cookie dumpling. You bite into a crisp and chewy cookie and immediately encounter an almost molten center of chocolate. The contrast of crisp cookie and dense, moist brownie is magical. If you have extra brownies (and you might, depending on how large you cut them), feel free to snack on them. A visitor asked me to recreate these, as something similar is on the Bon Appetit website http://www.bonappetit.com/recipes/2008/09/brownie_chunk_cookies.