3 apples, peeled, cored and chopped into small chunks
1.8kg/4lb marrows, peeled, seeds removed, chopped into small chunks
4 onions, chopped into small chunks
900g/2lb soft brown sugar
225g/8oz stoned dates, roughly chopped
2 tbsp ground ginger
225g/8oz sultanas or raisins
600ml20fl oz malt vinegar