Makes: 1 cup

1 garlic clove, minced
1 anchovy fillet
5 ounces mayonnaise
2 ounces sour cream
1 tablespoon tarragon vinegar
1 teaspoon lemon juice
1/8 teaspoon black pepper
2 tablespoons water
1 tablespoon minced parsley
1 tablespoon chopped chives

Mince the garlic with the anchovy. Combine with the mayonnaise, sour cream, vinegar, lemon juice, white pepper, water, parsley, and chives.
Chill sauce before serving.