Potato Soup
["2 c. diced potato", "chopped onion", "salt and pepper", "2 Tbsp. butter", "2 Tbsp. flour", "2 c. milk", "3/4 c. water from potatoes"]
["Boil potato and onion.", "Melt butter.", "Add flour, salt and pepper.", "Gradually add milk; cook until thick.", "Drain potatoes. Save water and mix with milk mixture.", "Cook for 15 to 30 minutes."]
["potato", "onion", "salt", "butter", "flour", "milk", "water"]