Tuna Chowder
["3/4 c. chopped onion", "3/4 c. sliced celery", "3 Tbsp. butter", "3 c. diced potatoes", "2 1/2 c. water", "1 1/2 tsp. salt", "2 scant Tbsp. flour", "1/4 c. milk", "1 3/4 c. milk", "2 (6 1/2 oz.) cans tuna or 1 large can"]
["Saute onion and celery in butter for 5 minutes.", "Add diced potatoes, water and salt.", "Heat to boiling; cook over medium heat for about 15 minutes.", "Blend flour with 1/4 cup milk, then add 1 3/4 cups milk.", "Stir into potato mixture.", "Cook until thick.", "Add tuna; heat and serve."]
["onion", "celery", "butter", "potatoes", "water", "salt", "flour", "milk", "milk", "tuna"]