01 -
Sift the all-purpose flour, cocoa powder, baking soda, and table salt into a medium-sized bowl.
02 -
Using a stand mixer or a handheld mixer on medium-high speed, beat the peanut butter and butter together for 1 to 1½ minutes until smooth.
03 -
Add the dark brown sugar to the mixture and continue mixing for another 1 to 1½ minutes until fully combined.
04 -
Lower the mixer to medium-low speed. Add the egg and mix just until there are no visible yellow streaks.
05 -
Add the pure vanilla extract and mix just until the brown streaks from the vanilla are incorporated.
06 -
With the mixer on medium-low speed, add the sifted flour mixture 1 cup at a time, mixing just until incorporated. Do not overmix. Cover the cookie dough and chill in the refrigerator for 30 minutes.
07 -
Preheat the oven to 350°F. Line 2 baking sheets with parchment paper or lightly greased heavy-duty aluminum foil.
08 -
Place the granulated sugar in a small bowl. Place the sifted powdered sugar into another small bowl or a quart-size ziplock bag.
09 -
Use a 1-tablespoon cookie scoop to measure the dough. Roll it into a ball, flatten slightly, and place a halved miniature peanut butter cup in the center. Fold the edges up and roll into a ball. Repeat for all dough.
10 -
Roll each cookie dough ball in the granulated sugar, then in the powdered sugar until fully coated. Place the coated balls on the prepared baking sheets, spacing them 2 inches apart.
11 -
Bake in the preheated oven for 8 to 10 minutes, or until the surface crackles. Allow the cookies to rest on the baking sheets for 2 to 3 minutes before transferring to a cooling rack.