Preheat oven to 375 degrees F. Lightly spray a baking sheet with cooking spray.
Place the Betty Crocker Sugar Cookie Mix, peanut butter, butter or margarine and egg in a mixing bowl. Beat together with an electric mixer until the dough comes together.
Using a large spoon drop even sized cookies onto the prepared baking sheet. You can also roll the dough in even balls, place on tray and press into a flattened round about ½ inch thick. Using a fork press the top to create a pattern.
Bake the cookies in the preheated oven for 12 – 17 minutes depending on the size of the cookies.
Remove and move the cookies from the tray to a cooling rack. Let cool about 5 minutes before serving.