Potato Soup
["2 Tbsp. butter", "2 Tbsp. chopped onion", "2 1/2 tsp. salt", "1/8 tsp. pepper", "1 tsp. flour", "1 Tbsp. chopped parsley", "1/2 c. chopped celery", "2 c. diced potatoes", "2 c. water", "3 c. milk"]
["Melt butter in 1-quart saucepan. Add onion and cook until tender.", "Add salt, pepper and flour; blend well.", "Add parsley, celery, potatoes and water.", "Mix thoroughly. Cover and place over high heat about 5 minutes.", "Reduce to low and cook 15 minutes until potatoes are tender.", "Add milk and heat thoroughly.", "Serves 6."]
["butter", "onion", "salt", "pepper", "flour", "parsley", "celery", "potatoes", "water", "milk"]