Very similar to one I tried a few years back with Andrey's Orange-1 - delicious
Old-Fashioned Tomato Marmalade from Put a Lid on It!
5 cups coarsely chopped peeled tomatoes (about 2 1/2 lb 2 kg)
(I used Andrey’s Orange-1 – lovely colour and very few seeds)
2 large oranges
1 lemon
4 cups granulated sugar
1. Place tomatoes in a large stainless steel or enamel saucepan.
2. Halve and seed oranges and lemon. Finely chop fruit in food processor or blender and add to tomatoes. Bring mixture to a full boil over high heat. Slowly add sugar, stirring until sugar is completely dissolved. Return to a boil and boil rapidly until mixture will form a gel, about 1 hour, stirring frequently. Remove from heat.
3. Ladle into sterilized jars and process as directed for Shorter Time Processing Procedure.
Makes about 6 cups (1.5 l).
Variation: Gingered Tomato Marmalade: Add 3 tbsp (45 ml) finely chopped peeled gingerroot during cooking. (I recall I used candied ginger) (and use organic citrus if possible)
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D.