Combine the ingredients above to make the sauce for the meatballs. Mix well. When the meatballs are just about cooled, place them in the sauce mixture. Cover dish and place in the refrigerator over night. About 2 hours before your party, place the meatballs that has sat in the sauce mixture into a crock pot on high or in a slow cooker to keep them simmering. Simmer for 1 ? - 2 hours.