Prep Ingredients: Measure all ingredients in advance for quick assembly.
Melt & Mix: In a medium saucepan over medium heat, melt the butter. Stir in sugar, milk, and cocoa powder until combined.
Boil for Exactly 1 Minute: Once the mixture starts boiling in the center, set a timer for 60 seconds and stir continuously.
Remove from Heat & Stir: Immediately add peanut butter, vanilla extract, and salt. Stir until smooth.
Mix in Oats: Fold in the oats until evenly coated.
Scoop & Shape: Drop spoonfuls of the mixture onto parchment paper.
Cool & Set: Let the cookies sit at room temperature or refrigerate for 30-60 minutes until firm.
Enjoy! Store in an airtight container for up to one week or freeze for longer storage.