In a large pot, add sugar, milk, and butter. Bring to a boil over medium high heat. Boil for one full minute. Remove from heat. Add vanilla, salt, and peanut butter. Stir until smooth. Fold in oats, stirring until completely combined. Fold in candy.

Lay out a large piece of parchment paper on counter. Using two spoons, drop cookie dough by large tablespoons onto paper. Allow to set (about 20 minutes). Store in a covered, airtight container.