Big Soft and Chewy Peanut Butter Crinkle Cookies

"Here's the peanut butter version of a molasses crinkle cookie. They're soft, supremely chewy, and have an old-fashioned peanut butter cookie flavor. The cookies are large in diameter, but not very thick, and disappear quickly since it's a small batch recipe, making just 1 dozen large cookies. I haven't tried the recipe making smaller cookies, but if you do, you'll need to reduce baking time but by how much, I don't know. The dough is very soft so handle it gently, and it must be chilled so the cookies don't spread and bake together into one giant paper-thin cookie. The cookies begin crinkling in the last minutes of baking and continue to do so as they cool. They break apart so nicely at the crinkles and it's so easy to keep breaking off section after section...."