Ingredients:

  • 1 cup (227g) unsalted butter, softened
  • 1 cup (200g) granulated sugar
  • 1 cup (220g) packed light brown sugar
  • 1 cup (255g) creamy peanut butter
  • 2 large eggs
  • 1 teaspoon (5ml) pure vanilla extract
  • 2 1/2 cups (300g) all-purpose flour
  • 1 teaspoon (5ml) baking soda
  • 1/2 teaspoon (2.5ml) baking powder
  • 1/2 teaspoon (2.5ml) salt
  • 1/2 cup (113g) unsalted butter, softened (filling)
  • 3 cups (360g) powdered sugar (filling)
  • 1/2 cup (127g) creamy peanut butter (filling)
  • 2-4 tablespoons (30-60ml) milk or heavy cream (filling)
  • 1/2 teaspoon (2.5ml) pure vanilla extract (filling)

Instructions:

  1. Cream together the softened butter, granulated sugar, and brown sugar in a large bowl until light and fluffy.
  2. Beat in the peanut butter until well combined, then add the eggs one at a time, followed by the vanilla extract.
  3. In a separate bowl, whisk together the flour, baking soda, baking powder, and salt.
  4. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix!
  5. Wrap the dough in plastic wrap and chill in the refrigerator for at least 30 minutes. This prevents excessive spreading.
  6. Preheat oven to 375°F (190°C). Line baking sheets with parchment paper or silicone baking mats.
  7. Scoop rounded tablespoons of dough onto the prepared baking sheets, leaving some space between cookies. Flatten slightly with the back of a fork in a criss-cross pattern.
  8. Bake for 10-12 minutes, or until the edges are golden brown and the centers are set.
  9. Let the cookies cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely.
  10. While the cookies are cooling, prepare the filling. Cream together the softened butter and powdered sugar until light and fluffy. Beat in the peanut butter and vanilla extract. Add milk or cream, one tablespoon at a time, until the filling reaches your desired consistency.
  11. Once the cookies are completely cool, spread a generous amount of peanut butter filling onto the flat side of one cookie and top with another cookie, creating a sandwich.
  12. Serve immediately or store in an airtight container.