To prepare a special edition peanut butter cookies recipe, first you need to prepare your ingredients. First, you will need your flour, baking powder, sugar, and salt. Then, add your dry ingredients to the wet ingredients and mix until everything is well combined. Next, preheat your oven to 375 degrees F (190 degrees C) and grease your cookie sheet with cooking spray. Sift the flour mixture into the baking dish and stir in the butter until the mixture is evenly coated. Now, in another bowl, mix together the sugar and butter with the egg and vanilla extract. Finally, pour the batter into your prepared baking sheet and bake for 12 to 15 minutes. Allow the cookies to cool completely before removing them from the oven.