For easier cutting, cool brownies and bars completely and use a plastic knife.
*Easy Caramel Apple Dip: combine remaining (1/3 cup) sweenened condensed milk, 2 tablespoons each butter and brown sugar in small saucepan. Heat over medium-low heat until hot and bubbly, stirring constantly; continue to cook 2 minutes. Remove from heat; stir in 1 tablespoon milk or apple juice. Serve warm with sliced apple.