01 -
½ cup butter, softened.
02 -
½ cup granulated sugar.
03 -
½ cup packed brown sugar.
04 -
1 large egg.
05 -
½ cup creamy peanut butter.
06 -
1 teaspoon pure vanilla extract.
07 -
1¼ cups all-purpose flour.
08 -
½ teaspoon baking soda.
09 -
¼ teaspoon table salt.
10 -
½ cup peanut butter, reserved for the filling.
11 -
¼ cup softened butter, for filling.
12 -
1 cup powdered sugar (confectioners’ sugar).
13 -
1-2 tablespoons milk (adjust as needed).