Soak gelatine for 5 mins in cold water. Heat the cranberry and raspberry juice until warm, whisk in the sugar and remove from the heat. Add the gelatine and whisk in to dissolve. Stir in the vodka and lime juice. Leave to cool. Put the raspberries in glasses and pour jelly over. Leave to set.
Recipe by appetite magazine at https://www.appetitemag.co.uk/vodka-jelly/