Tangerine Marmalade - cooking recipe

Ingredients

3 lbs tangerines
2 small lemons
1 1/2 cups water
4 1/2 cups sugar

Preparation

Chop the tangerines, peel and all. I do this by hand, so as to remove the seeds. If you're using a seedless variety, then by all means use the food processor.
Repeat with the lemons.
Combine the tangerines, the lemons, and the water in a pot.
Bring rapidly to a boil; simmer for 5 minutes. Remove from the heat, cover, and let sit 12 to 18 hours.
Add the sugar (or more, if you like a sweeter marmalade) and bring rapidly to a boil. Meanwhile, start heating up your boiling water bath in a separate pot.
Stir constantly while bringing the mixture almost to the gelling point.
Transfer to prepared half pint jars leaving a 1/4\" headspace. Process in
a boiling water bath for 10 minutes. Adjust time according to your altitude.