Homemade Yogurt In A Thermos
["4 c. milk (slightly less)", "1 c. dry milk powder", "2 to 4 Tbsp. plain yogurt (active culture)", "Optional: 2 tsp. unflavored gelatin softened in 1/4 c. cold water for firmer yogurt"]
["Fill Thermos with very hot water; set aside.", "Heat milk to temperature of 95\u00b0 to 115\u00b0 (use cooking thermometer as this temperature is very important:", "too", "low", "-", "sours; too high -kills).", "Pour into bowl", "and", "add milk powder and yogurt;\tmix well.", "(Add optional", "gelatin at this point).", "Pour water from thermos and fill with yogurt mixture.", "Tightly cap lid and set aside; note time.", "After 3 hours, you should have thin yogurt; after 6 hours,", "thick", "yogurt.", "Pour", "small", "amount first into small jar to use", "as a starter next time.", "Pour remainder into container and refrigerate."]
["milk", "milk powder", "yogurt", "unflavored gelatin"]