Lemon Marmalade
["1 1/2 c. thinly sliced lemons, tightly packed", "1 c. thinly sliced lemon rind", "6 c. water", "4 c. granulated sugar"]
["Remove any seeds from the lemons.", "Discard end pieces.", "In a large heavy saucepan, combine the lemons, lemon rind and water. Bring to a boil.", "Boil rapidly, uncovered, for 30 minutes.", "Stir in sugar; cook rapidly, uncovered, for 30 minutes.", "Place a small amount of mixture in a spoon.", "Cool slightly.", "The mixture should \"sheet\" from the spoon or drop off more or less as a single drop. If using a candy thermometer, it should read 228\u00b0 when marmalade is ready.", "Cool for 5 minutes.", "Pour into sterilized jar and seal with lid or paraffin (first cooling the marmalade to point of setting before sealing)."]
["lemons", "lemon rind", "water", "sugar"]