Mix together in a jar:

1 pkt. Italian salad dressing mix
1/4 c. red wine vinegar or 1/4 c. red wine vinegar and oil salad dressing
2 tbsp. water

Shake vigorously until well blended. Add 1/2 cup water. Pour mixture over 6 chicken breasts in plastic bag. Marinate several hours or overnight is best. Turn bag a few times so chicken is thoroughly coated. Put on hot grill; cook until done.