Potato Soup
["2 Tbsp. chopped onion", "2 Tbsp. butter", "1 tsp. salt", "1/4 tsp. celery salt", "1/8 tsp. pepper", "1 c. mashed potatoes", "2 c. hot milk"]
["Saute gently onion in butter.", "Add next three ingredients. Stir in hot milk.", "Simmer slowly for about 5 minutes, stirring occasionally.", "Put in blender for 1 minute.", "Before serving, sprinkle with grated cheese and pop under the broiler to brown. Yields 6 servings.", "Very tasty."]
["onion", "butter", "salt", "celery salt", "pepper", "potatoes", "hot milk"]