Here is a picture of all your ingredients.
Combine 2 cups of sugar, 4 tablespoons of cocoa, 8 tablespoons of butter, and 1/2 cup of milk in a pan.
Bring to a rolling boil and hold for one minute
Add 1 cup of peanut butter to the mixture. Creamy peanut produces more moist cookies, but crunchy peanut butter can work too.
Stir peanut butter into the mixture for about a minute. The peanut butter should be melted through out the mixture when done.
Add one tablespoon of vanilla.
Finally, add three cups of oats and stir all together until the oats are covered with the chocolate mixture.
Use a tablespoon to drop the mixture onto wax paper, and let set. It can take as little as 5 minutes for the cookies to begin to hold their shape. Ta-da! You are done, now clean up your mess. :)