From the Baker's Dozen cookbook. Beautiful crackers! You may cook both sheets of crackers at once if you have 2 baking stones, however, halfway though the baking time, switch the sheets so that they bake more evenly. If you allow for the dough to chill for 1hr+ it may crack and need to sit for 10 minutes to lose its chill. Overmixing the dough will make your crackers tough, so be careful! Prep time does not include chilling.