Parmesan Chive Potatoes

11/2 pounds of red potatoes, cooked and  sliced

Mix:  1 cup Hellman's mayonnaise
          1/2 cup milk
           8 tablespoons parmesan cheese
           1/4 cup chives
            1/2 teaspoon black pepper

Spread potatoes in a baking dish.  Pour the mayonnaise mix over the potatoes. Top with extra parmesan cheese.  Bake at 350 degrees for 25 minutes