3cupsquick oats(do not use old fashioned or steel cut oats)
Heat a medium saucepan with the butter, sugar and milk over medium high to high (enough to bring the syrup to a boil). Stir frequently to prevent burning!
Once the butter is melted and the syrup has reached a full rolling boil, cook at a boil for 1 full minute then remove from heat.
Add the vanilla and peanut butter and stir to combine with the syrup. Then add the quick oats and stir until mixed thoroughly and the oats are evenly coated.
Drop by spoonfuls onto waxed paper and allow to cool and set up for at least one hour. I usually make my no bake cookies in the evening to allow the peanut butter oatmeal no bake cookies to set up completely overnight.