BBC Food - Recipes - Vodka and tonic battered cod with chips and tomato ketchup

Ingredients

• 1litre/1¾ pints vegetable oil
• 1kg/2lb 4oz beef dripping
• 400g/14oz chipping potatoes , peeled, cut into batons
• 15g/⅔oz fresh yeast
• pinch salt
• pinch sugar
• 175ml/6fl oz tonic water
• 200g/7oz plain flour
• 25ml/1fl oz vodka
• 1 tsp cider vinegar
• 4 x 175g/6oz cod (or other white fish such as coley or pollack) fillets, skinned, pin boned
• 250ml/9fl oz red wine vinegar
• 1 bay leaf
• ½ tsp ground coriander
• ½ tsp ground cinnamon
• 75g/3oz light soft brown sugar
• 1.6kg/3lbs 8oz chopped tinned tomatoes
• 1 tsp salt
• 1 tbsp English mustard powder
• 1 garlic clove, crushed
• Tabasco sauce
• 2 tbsp tomato purée
• 1-2 tbsp cornflour