Wash, stalk and stone the cherries. Weigh 1500 g flesh
Mix the fruit, almonds and jelly sugar well in a large pot. Bring to the boil while stirring over high heat. Cook for at least 3 minutes while stirring until bubbly. In between, possibly skim off some foam. Immediately fill up to the brim into prepared glasses and close them
Shelf life 6-9 months