INGREDIENTS
•
4 pounds sweet potatoes or white potatoes, peeled and cut into 1/2-inch cubes (about 10 cups)
•
1/4 cup butter or margarine
•
1/3 cup dairy sour cream
•
1/4 cup milk
•
1/2 teaspoon salt
•
1/2 teaspoon freshly ground black pepper
•
Butter or margarine (optional)