Crazy for Crust's Classic No-Bake Cookies

Line two large baking sheets with parchment paper or wax paper.

In a medium saucepan, combine sugar, butter, milk, and cocoa powder over medium heat.

Bring mixture to a rolling boil and boil for exactly 1 full minute (60 seconds) without stirring.

Remove saucepan from heat immediately; stir in creamy peanut butter and vanilla extract until completely melted.

Stir in quick oats until fully coated.

Drop rounded tablespoons of mixture onto prepared parchment paper.

Let cool and set at room temperature for 15 to 20 minutes until firm.