You can bake these Snickerdoodles immediately after you mix them up, or put the dough in the fridge and chill it for a few hours. (Of course, then you may discover that you have significantly less dough when you pull the bowl out of the fridge than you had when you put it in. That happens a lot at our house.) Baking the dough immediately yields a slightly wider, flatter cookie, and the texture is a bit more dense. It does not, however, affect the flavor at all.