01 - Line two baking sheets with parchment paper or silicone baking mats.
02 - In a medium saucepan over medium heat, melt the butter. Stir in the sugar and milk until well blended.
03 - Bring the mixture to a gentle boil, stirring constantly. Once boiling, stop stirring and let it cook for exactly 1 minute.
04 - Remove the saucepan from heat. Immediately add the peanut butter, vanilla extract, and a pinch of salt. Stir until completely smooth and no streaks remain.
05 - Quickly fold in the quick-cooking oats until evenly coated and well combined. Work promptly before the mixture begins to firm up.
06 - Using a tablespoon or cookie scoop, drop portions of the mixture onto the prepared baking sheets, spacing them about 1 inch apart.
07 - Allow the cookies to cool and set at room temperature for 10 to 15 minutes until firm to the touch.
08 - Once fully hardened, transfer the cookies to an airtight container for storage. Keep at room temperature for up to 1 week.