Peanut Butter Cookies
Adapted from the Magnolia Bakery Cookbook
1 1/4 cups all-purpose flour
3/4 teaspoon baking soda
1/2 teaspoon baking powder
1/4 teaspoon salt
1/2 cup unsalted butter, softened
1 cup peanut butter at room temperature (smooth is what we used, but I am pretty sure they use chunky at the bakery)
3/4 cup sugar
1/2 cup firmly packed light brown sugar
1 large egg, at room temperature
1 tablespoon milk
1 teaspoon vanilla extract
1/2 cup peanut butter chips
1/2 cup chocolate chips or white chocolate chips
For rolling: 1 tablespoon sugar, regular or superfine, plus more as needed
Preheat oven to 350 degrees. In a large bowl, combine the flour, the baking soda, the baking powder, and the salt. Set aside.
In a large bowl, beat the butter and the peanut butter together until fluffy. Add the sugars and beat until smooth. Add the egg and mix well. Add the milk and the vanilla extract. Add the flour mixture and beat thoroughly. Stir in the peanut butter and chocolate chips. Place the sugar, for rolling dough balls in, in a small bowl. Drop by rounded teaspoonfuls (or use a medium cookie scoop) into the sugar, then onto ungreased cookie sheets, leaving several inches between for expansion. Using a fork, lightly indent with a crisss-cross pattern (I often use the back of a small offset spatula to keep it smooth on top instead), but do not overly flatten cookies. Bake for 10 to 12 minutes. Do not over bake. Cookies may appear to be underdone, but they are not.
Cool the cookies on the sheets for 1 minute, then remove to a rack to cool completely.