Make brownie batter as directed on box. Spread in pan. Squeeze salted caramel pouch 10 seconds or until softened. Cut 1/4-inch tip from corner of pouch. Squeeze caramel onto brownie batter in 4 straight lines. Pull edge of a knife crosswise through caramel and batter in 4 straight lines, alternating direction. Place pretzels evenly on top of batter; sprinkle cocktail peanuts over top.