Twenty Quick Soups by Sarah Tyson Rorer

Add one cup of cold cooked oatmeal to one quart of water; add a slice of onion, sprig of celery top, bay leaf, teaspoonful of salt, saltspoonful of pepper. Cover and boil slowly ten minutes; add a half teaspoonful of beef extract, or, if you have stock, use it in place of water. Now press through a sieve; return to the fire; when boiling, add half pint of hot milk, and serve.