01 -
Scoop 8 tablespoon-sized dollops of peanut butter onto a parchment-lined plate. Freeze until ready to use.
02 -
Cut butter into cubes and place in a heavy saucepan over medium heat. Stir constantly as it melts. Continue stirring until butter turns golden brown and smells nutty (it will foam, this is normal). Remove from heat and transfer to a heat-safe bowl to cool.
03 -
Once butter has cooled, preheat oven to 350°F (175°C). Line a baking sheet with parchment paper.
04 -
In a large bowl, whisk together the cooled brown butter, brown sugar, and granulated sugar until well combined. Add egg and vanilla, whisking until mixture is smooth.
05 -
Sift flour, baking soda, and salt into the wet ingredients. Fold gently until just combined, being careful not to overmix.
06 -
Fold in chocolate chips and M&Ms until evenly distributed throughout the dough.
07 -
Scoop ¼ cup portions of dough (or use a standard ice cream scoop). Flatten each portion, place a frozen peanut butter dollop in the center, then fold the dough around it to enclose completely. Press down each cookie ball about ¾ of the way to help it spread while baking.
08 -
Press a few additional chocolate chips and M&Ms into the top of each cookie.
09 -
Bake 6 cookies at a time for 10 minutes, or until the edges are set and the bottoms are golden brown. The centers may look slightly underdone.
10 -
While cookies are still warm, use a large round cookie cutter or measuring cup to reshape them if desired. Press additional M&Ms, chocolate chips, and optional pretzels on top of the warm cookies.
11 -
Allow cookies to cool completely on the baking sheet to set. Enjoy once cooled, or store in an airtight container.