Preparation Steps

• Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.
• In a medium bowl, whisk together the flour, baking soda, baking powder, and salt. Set the mixture aside.
• In a large bowl, beat the softened butter, granulated sugar, and brown sugar together until creamy.
• Add the vanilla extract, 1/2 cup of peanut butter, egg, and milk to the butter mixture and mix until well combined.
• Gradually add the dry ingredients to the wet ingredients, mixing just until combined.
• Scoop tablespoon-sized amounts of dough onto the prepared baking sheet. Flatten each scoop slightly, place a small spoonful of the remaining peanut butter in the center, and fold over the edges of the dough to seal.
• Bake in the preheated oven for 8 to 10 minutes, or until lightly golden. Allow the cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.