Sweet and Sour Cocktail Meatballs

Bahan-bahan (48 porsi)

• 2 pounds frozen meatballs
• 2 pounds lean ground beef
• ½ small onion (very finely diced)
• ½ cup bread crumbs
• 2 eggs
• 1 teaspoon black pepper
• 10 ounces apricot preserves
• ⅔ cup barbecue sauce