Jujube Butter - cooking recipe

Ingredients

6 pints chinese jujubes
5 cups sugar (more, to taste)
2 teaspoons cinnamon
1 lemon
1 teaspoon nutmeg
1/2 teaspoon clove
1/4 pint vinegar

Preparation

Boil fruit until tender in sufficient water to cover it.
Rub cooked fruit through a sieve or colander to remove the skin and seeds.
Cook slowly until thick, put in jars, leaving 1/2\" headspace.
Wipe rim, cover and screw on bands; process in boiling water bath 15 minutes.