Plum Jam (Marmellata di Susine)

Washed and pitted plums, place them in a pot of steel with a glass of water and simmer 15 minutes.

Then pass through a sieve, add the sugar and place over heat until it thickens.

Place the jam in jars and store.

Note: you must use healthy fruit and fair point of ripeness, not wash it too often in water and wiping with a clean cloth; for cooking pots are preferred by high steel as this is slow and very long; for glass containers have the utmost care and cleaning and must be airtight; Finally, if the jam is mildew on the surface removed that part, clean the jar and cover with alcohol for liquor at 90 degrees.