1/2 c. sour cream
1/2 c. mayonnaise
2 tbsp. plus 1 1/2 tsp. white wine vinegar
1 tsp. dried whole dill weed
1/2 tsp. salt
1/4 tsp. pepper
1 tsp. sugar (optional)

Combine all ingredients in a small mixing bowl, stirring until well blended. Cover and chill at least 2 hours before serving. Yield: 1 cup.