My sister turned me on to Sheila G's brownie brittle. Yum! I immediately went to the computer to see if I could make this at home. This is the original version. From cleanslatefarm.com. And Dave Lenweaver The trick with this recipe is four-fold but don’t worry, they’re easy. First. Use a real sheet pan like the ones in restaurants. There are several good ones available. Proper baking requires heavy gauge metal to distribute the heat evenly. Vollrath makes a good one and you can buy them at a restaurant supply store. Second. As long as you are at the restaurant supply store get a silicon baking mat to fit the pan. I still use parchment paper. Third. Bake the brittle until it’s almost overdone. Unlike a regular brownies, you want it to dry out…kind of. Watch it like a hawk. Fourth. Let it cool well so when you do eat the entire batch in one night you can at least say you had some self control.