Soak the gelatine leaves in cold water. Drain, squeeze and dissolve the soaked gelatine in the hot water from the kettle. Add to the warm, smooth-style orange juice and set aside. Repeat the process using warm cranberry juice. Pour half of the orange juice into a large jelly mould and chill in the fridge until set completely – about 4 hours. Cover the orange jelly with half the cranberry juice and chill to set. Repeat the process until both juices are used. Leave to set overnight.
Make it boozy
Swap the water for 100mls vodka in each jelly, and make as per the recipe above whilst adding 1 extra gelatine leaf to each batch