This section is from the book "The White Ribbon Cook Book", by Kathryn Armstrong. Also available from Amazon: The White Ribbon Cook Book.
One peck yellow tomatoes cut into pieces and boiled until soft; strain through a jelly bag; put on the fire and boil 20 minutes; to every cup of juice measure one of sugar; set the sugar in the oven, being careful that it is only heated through, not scorched. At the end of the 20 minutes add the sugar and the juice of a dozen lemons which has been strained through your jelly bag; boil 15 minutes more, then pour into your jelly glasses. Have the glasses just washed in hot water and wiped dry, and put a teaspoon in each one as you are ready to fill it. This will prevent the hot liquid from breaking the glasses.
 
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