Lightly coat a 15x10x1-inch baking pan with nonstick cooking spray; set aside. For meatballs, in a very large bowl, beat egg with a fork. Stir in bread crumbs, dried cranberries or raisins, onion, salt, garlic powder, and cloves or allspice. Add ground chicken or turkey; mix well. Shape into 60 meatballs.
Place meatballs in prepared pan. Bake in a 350 degree F oven for 15 to 18 minutes or until done (165 degrees F).*.
Meanwhile, in a 3-1/2- to 4-quart slow cooker, stir together cranberry sauce and barbecue sauce.
Add cooked meatballs, stirring gently to coat. Cover and cook on low-heat setting for 2 to 3 hours or on high-heat setting for 1 to 1-1/2 hours. (Meatballs may be kept warm on low-heat setting for up to 1 hour more.) Serve with toothpicks. Makes 60 meatballs.