James Martin’s recipe for the perfect homemade fish and chips.
1litre/1¾ pints vegetable oil
1kg/2lb 4oz beef dripping
400g/14oz chipping potatoes, peeled, cut into batons
15g/⅔oz fresh yeast
175ml/6fl oz tonic water
200g/7oz plain flour
25ml/1fl oz vodka
1 tsp cider vinegar
For the cod, heat the vegetable oil and beef dripping in a deep fat fryer to 170C/325F. (CAUTION: Hot oil can be dangerous. Do not leave unattended.)
Fry the chipped potatoes in the oil for 2-3 minutes, or until tender, but not coloured. (You may need to do this in batches.) Drain the potatoes onto kitchen paper and increase the oil temperature in the pan or deep fat fryer to 190C/375F/Gas5.
Meanwhile, mix the yeast, salt and sugar in a bowl until well combined.
Pour the tonic water into the yeast mixture and whisk in the the flour, vodka and vinegar. Leave to the mixture to ferment – it is ready to use when the mixture starts to bubble.
Coat the cod fillets in the batter and fry in the oil for 3-4 minutes, or until golden-brown and crisp. Remove the battered cod with a slotted spoon and drain on kitchen paper.
Fry the semi-cooked chips in the oil for a second time for 2-3 minutes, or until golden-brown and crisp.
For the tomato ketchup, heat the vinegar, spices and sugar in a heavy-based pan until simmering.
Add the remaining ingredients, bring to the boil and stir to prevent the mixture from sticking to the side of the pan.
Once the mixture has reached boiling point, reduce the temperature to a simmer and cook for a further 30 minutes, stirring occasionally.
Blend the mixture in a blender until smooth, then push the ketchup through a sieve.
Serve the cod alongside the chips with a good dollop of tomato ketchup.
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