1. Heat oven to 375 F. Line rimmed baking pan with nonstick foil.
2. Cut each slice of bacon in half. Wrap bacon slice around kielbasa; secure with toothpick. Place on baking pan.
3. In small bowl, stir together jam, vinegar and mustard, creating a glaze. Brush over bacon and kielbasa.
4. Bake 30–40 minutes, turning kielbasa and brushing with jam mixture every 10 minutes, until bacon is cooked thoroughly and glazed.
Tip: Nonstick foil works great for keeping the appetizers from sticking. If this isn’t available, use heavy-duty foil with nonstick spray.