Recipe - Orange Lemon And Grapefruit Marmalade

1 Grapefruit
3 Oranges
3 Lemons
Water
Sugar

Makes about 18 jelly glasses.

Scrub, cut in halves, remove seeds and slice into very small pieces.

Measure the fruit and juice and add 3 times the amount of water. Soak for
12 hours. Simmer for about 20 minutes. Let stand again for 12 hours.

For every cup of fruit and juice add Three fourths cup sugar. Cook ingredients in
small quantities about 46 cups at a time until they form a jelly. Check by
the sheet test with a spoon or use a thermometer 8 degrees F above the
boiling point of water for your altitude.

Pour into prepared jars, seal and process. Source: Joy of Cooking 1974
printing Shared by Elizabeth Rodier June 1993 (testing recipe with limes)