Italian Cheese Dressing
["1/2 c. olive oil", "1/4 c. tarragon vinegar", "1/2 c. mayonnaise", "1/2 c. grated Romano cheese or mixture of Parmesan and Romano", "1/4 tsp. salt", "freshly ground pepper to taste"]
["With a wire whisk, beat together all ingredients. Refrigerate.", "Mix before serving.", "Can be made ahead.", "Makes about 1 1/2 cups."]
["olive oil", "tarragon vinegar", "mayonnaise", "Romano cheese", "salt", "freshly ground pepper"]