01 -
Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper.
02 -
In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.
03 -
In a large bowl, beat together the softened butter, creamy peanut butter, granulated sugar, and brown sugar until smooth and creamy.
04 -
Add the egg and vanilla extract to the wet mixture, beating until fully combined. Gradually add the dry ingredients to the wet mixture, mixing until just combined.
05 -
Scoop tablespoon-sized portions of dough and roll them into balls. Place them on prepared baking sheets about 2 inches apart. Flatten each cookie slightly with a fork, creating a criss-cross pattern on top.
06 -
Bake for 10-12 minutes, or until the cookies are golden around the edges. Let them cool on the baking sheets for 5 minutes, then transfer to a wire rack to cool completely.
07 -
In a mixing bowl, beat together the creamy peanut butter, powdered sugar, vanilla extract, and softened butter until smooth.
08 -
Once the cookies have cooled, spread the filling on the flat side of one cookie, then sandwich with another cookie.
09 -
Store in an airtight container at room temperature.