1 c. mayonnaise
1/4 c. white vinegar
Juice of 3 lemons
1 tsp. salt
1 1/2 tsp. sugar
1/4 tsp. black pepper (add more if you like lots of pepper)

Mix all ingredients together well. In saucepan heat on low stirring constantly until well blended (wire whip is helpful to mix well). Just heat long enough for mayonnaise to melt and not be too lumpy.

Baste chicken breasts (or other parts of chicken, if desired) well. Grill and baste frequently. Some people like sauce to add additional at table. This will do 4 whole boneless chicken breasts.