Add oatmeal to a large mixing bowl.  Set aside. 

Add sugar, butter, salt, and milk to a medium saucepan.  

Over medium heat, stir often, and bring mixture to a low boil for one minute.

Remove from heat and stir in vanilla and peanut butter until smooth.

Pour mixture over top of oatmeal.  Stir until well-combined.

Scoop tablespoons of batter onto wax paper.  

Gently press each spoonful with your fingers to flatten them.

In a microwave safe bowl, microwave chocolate chips and butter in 30-second intervals until melted.  Be sure to stir often.

Drizzle melted chocolate over cookies with a spoon.

Allow the cookies to cool completely.