Nibblous | apple and marrow chutney

Ingredients

• 1.5kg (3 lb) Marrow
• 450g (1lb) onions, sliced
• 450g (1lb) cooking apples
• 450g (1lb) cooking dates, roughly chopped
• 600ml (1 pint) malt vinegar
• 1 kg (2lb) sugar
• 5ml (1 tsp) salt
• 5 ml (1 tsp) ground ginger
• 45ml (3 tbsp) pickling spices (in a muslin bag)