04Beat in the egg, and then add the milk and vanilla.
05Pour in the flour mixture and beat until completely incorporated.
06Stir in the peanut butter and chocolate chips.
07Place the sugar for rolling dough in a small bowl.
08Use a cookie scoop or tablespoon to scoop up walnut-sized balls of dough. Roll the cookie dough in the granulated sugar, then place on an ungreased cookie sheet. This is very soft dough and the cookies will spread some, so leave plenty of space between the cookies.
09Using a fork, gently press each cookie with a criss-cross pattern, but do not flatten the cookies.
10Bake for 10 to 12 minutes. Do not over bake. Cookies may appear to be underdone, but they are not.
11Cool the cookies on the sheets for 1 minute, then remove to a rack to cool completely.