Prep: 12 minutes; Cook: 3 hours, 30 minutes
Slow-Cooker Size: 3-quart
Place caramels in a 3-quart slow cooker; stir in condensed milk.
Cover and cook on LOW 3 1/2 hours, stirring occasionally, until caramels melt and mixture is smooth. Serve with apple slices and pound cake squares.
Party Plan: Keep this fondue warm in the slow cooker for easy dipping. Reheat any leftovers in the microwave, stirring at 1-minute intervals until heated through.