Potato Soup
["2 qt. potatoes", "1 medium onion", "1 stick butter", "4 Tbsp. flour", "1 can condensed milk"]
["Peel and dice 2-quarts potatoes.", "Cover with water and cook until tender. Peel and chop medium onion. Saute in butter until tender."]
["potatoes", "onion", "butter", "flour", "condensed milk"]