Step 1

Line two baking sheets with parchment paper.

Step 2

In a large heavy pot, combine the butter, sugar, milk, and cocoa powder.  Heat over medium heat until it starts to bubble, then set a timer and boil for 60 seconds (no more!).

Step 3

Immediately remove from heat and stir in the peanut butter, oats, vanilla, and salt until combined.

Step 4

Working quickly, drop about 2 tablespoons of the chocolate peanut butter oats mixture at a time onto the prepared cookie sheet, pressing gently on the tops of each cookie to flatten slightly.

Step 5

Let the cookies sit at room temperature until cool and firm.  Store in an airtight container.