Wash the currants, drain and remove from the stalks with a fork. Wash and sort the raspberries. Wash and clean the strawberries and cut them in half or quarters depending on size. Mix the fruit and jam sugar in a large pot and leave to soak for 3-4 hours.
Bring to the boil and boil for 4 minutes while stirring. Pour hot jam into the prepared glasses. Immediately place the preserving cellophane on top and then close tightly with kitchen string. Results in 3-4 glasses (380 ml content each)
With 3 glasses With 4 glasses approx. 4700 kJ/ 1120 kcal