Combine sugar, butter, cocoa and milk in a medium saucepan over medium heat.
Stir constantly and bring to a boil.
Once boiling, remove from heat and add the salt, vanilla and peanut butter and mix until well combined.
Add oats and mix until full incorporated.
Drop by spoonfuls or using a cookie dough scoop onto foil or waxed paper.
Let cool before eating.
Notes
You can use old fashioned oats if you don’t have quick oats on hand, but the texture will be different. We prefer the texture and consistency of quick oats.