01 -
In a medium bowl, whisk together flour, baking soda, and salt until well combined.
02 -
Using a hand or stand mixer, beat the butter, peanut butter, granulated sugar, and brown sugar on medium speed until light and fluffy.
03 -
Add the egg and vanilla extract to the creamed mixture and beat until fully incorporated.
04 -
Gradually add the dry ingredients to the wet mixture, mixing until just combined. Do not overmix.
05 -
Gently fold the mini Reese’s peanut butter cups into the dough using a spatula.
06 -
Form large dough balls, place them onto a baking sheet, and flatten each slightly into a disk.
07 -
Bake in a preheated oven at 350°F (175°C) for 11 minutes until edges are set but centers remain soft.
08 -
Immediately press a full-size Reese’s peanut butter cup into the center of each warm cookie after baking.
09 -
Let cookies cool on the baking sheet for a few minutes before transferring to a wire rack. Serve warm or at room temperature.