Stove Top Potatoes
["1 minced onion", "1 Tbsp. margarine", "2 Tbsp. oil", "1 Tbsp. cider vinegar", "5 medium potatoes (1/4-inch thick)", "1 c. boiling water"]
["Cook the onion in the oil and butter in a heavy skillet until just beginning to brown.", "Stir in the vinegar and potatoes; pour in the boiling water.", "Cover skillet and simmer, stirring once or twice, until they are done, 20 to 30 minutes."]
["onion", "margarine", "oil", "cider vinegar", "potatoes", "boiling water"]