Yogurt
["1 qt. instant nonfat dry milk (add extra powder)", "1/3 can evaporated milk", "1/2 c. plain yogurt"]
["Make the instant milk, adding the extra powder.", "Add the evaporated milk.", "Heat until almost boiling.", "Let it cool to lukewarm in a casserole dish.", "Add the yogurt and cover.", "Wrap in aluminum foil and a towel.", "Put in the unheated oven for 24 hours. Add vanilla, honey, fruit, etc., for flavoring.", "Serves 4."]
["milk", "milk", "plain yogurt"]