In a saucepan, stir together milk, sugar and cocoa. Cook over low heat until sugar dissolves. Add butter and stir until melted. Remove from heat. Add peanut butter and vanilla; stir. Add ... teaspoon on waxed paper.
Mix sugar and milk and melt; add cocoa. Boil for 5 minutes. Turn off heat. Add vanilla, butter, peanut butter and oats. Drop on ... and cool in refrigerator.