01 -
Freeze marshmallows for at least 1-2 hours before using. Keep marshmallows in freezer until ready to bake.
02 -
Preheat oven to 350 degrees Fahrenheit. Line cookie sheets with a silicone baking mat or parchment paper. Set aside.
03 -
In a medium bowl, stir together the flour, baking soda, and salt. Set aside.
04 -
Cream the butter and both sugars with an electric mixer until light and creamy.
05 -
Add the peanut butter, egg, and vanilla. Mix well and scrape the bowl.
06 -
Add the dry ingredients to the wet mixture and mix until almost incorporated.
07 -
Remove marshmallows from the freezer and fold a heaping cup of marshmallows into the cookie dough.
08 -
Use a #30 scoop (about 2 tbsp) to quickly shape the cookie dough into balls. Place a few inches apart on a prepared baking sheet. Place remaining cookie dough in the fridge to keep marshmallows cold until ready to bake.
09 -
Bake cookies at 350˚F for 11-12 minutes or until just set and edges are starting to brown.
10 -
Allow cookies to cool completely on the tray, about 10 minutes. After 2-3 minutes of cooling, use a greased spatula to round any misshapen cookies if desired. Transfer cooled cookies directly to a serving platter or airtight container.