The New Zealand Railways Magazine, Volume 3, Issue 12 (April 1, 1929)
Tomato Soup to Keep
Tomato Soup to Keep.
Put 4 lbs. of tomatoes, 2 onions, 1 teaspoon salt, peppercorns and sugar, and a little thyme into a pot with 2 quarts of water. Boil rapidly for 1 ½ hours and then rub through a colander. Bottle and seal while hot. This soup keeps all the year. When needed, heat the desired quantity, add two cups of milk, a lump of butter the size of walnut, and thicken with a tablespoon of flour.
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