1. Line cookie sheets with waxed paper. In large saucepan, combine brownie mix, milk and butter; cook over medium heat until mixture comes to a boil, stirring constantly. Boil 2 minutes, stirring constantly. Remove from heat.
2. Add peanut butter and vanilla; blend well. Stir in oats. Carefully stir i n candy pieces. Drop dough by tablespoonfuls onto waxed paper-lined cookie sheets. Cool 5 minutes or until completely cooled.
6 1/2 dozen cookies.