If the cookies look wet after the 7 minutes then leave them in for an additional 1 minute or so. I've made this recipe dozens of times, and 7 minutes is the magic number. But depending on oven temps, some may need an additional minute. You don't want to overcook peanut butter cookies or else they will be crumbly and dry. Better to pull them out slightly underdone then overdone. They will continue cooking on the cookie sheet and come together perfectly.