When using holiday cookie cutters, it’s important to roll the dough to the right thickness. Too thin and your cookies will be brittle and may burn; too thick and the cookies won’t cook all the way through. The ideal thickness is 1/4 inch so the cookies are durable enough to be handled and decorated but thin enough to be crisp. Of course, if you prefer your cookies to be thicker or crispier, you can experiment to find the best thickness for your recipes.