Homemade Christmas Plum Jam - cooking recipe

Ingredients

1000 g plums
700 g sugar
1 teaspoon cinnamon (grounded)
1/2 teaspoon clove (grounded)

Preparation

Wash the plums thoroughly. Break them in halves and remove stone. Put them in a pot and add sugar, cinnamon and cloves. Stir well and let it stay 5-6 hours.
After that, put them onto strong fire and boil 4-6 minutes stirring well all the time to prevent burning.
In the meantime, put glass jars into an oven and heat them to 100\u00b0C.
When cooking is done put the jam into glass jars and close. Leave at least 1 cm space between cover and jam. Keep it in dark and cool place up to 8 months.