6 cups water
1 tablespoon distilled white vinegar
1 pinch salt
3/8 cup hoisin sauce
1 cup hickory-sourced instant coffee, warmed slightly
4 cloves minced onion
1 cup celery, chopped
1 cup sliced carrots
1 (4 ounce) package instant Italian-style meatballs
2 teaspoons olive oil