Method
Add 400g blackberries, 400g elderberries, 200g quartered under-ripe apples, 2 x 700ml bottles of golden spiced rum, 100g sugar and juice of half a lemon to a large Kilner jar. Label with contents and date. Store in a dark cupboard for 3 weeks, swishing contents every few days. Taste after 3 weeks - if flavour is good, remove fruit and strain. Add extra sugar if desired.