Combine milk, butter in sauce pan, heat until butter is melted. Stir i salmon (grate a little onion for taste if desired). To thicken stew combine 1/2 cup milk and 1/4 cup flour, blend until smooth, add to salmon mixture. Stir well, bring to boil, lower heat, simmer 5 minutes and serve. Serves 4 (I use 1/2 recipe for two).