Carve the peach skin crosswise. Dip the fruit briefly in boiling water, rinse with cold water and peel the skin. Cut peaches in half and stone them. Dice fruit flesh and weigh 500 g.
Mix the fruit, orange juice, Campari and jam sugar in a large saucepan. Bring to the boil while stirring constantly. Then boil for 3 minutes until bubbly. Immediately pour into carefully cleaned glasses and close them tightly.