Fish and chips is a classic British dish that has been enjoyed for centuries. It consists of battered and deep-fried fish, usually cod or haddock, served with crispy fries (chips).
In a mixing bowl, combine flour, cornstarch, baking powder, and turmeric. Gradually whisk in the cold non-alcoholic beer until the batter is smooth. Set aside.
Pat the cod fillets dry with paper towels to remove moisture, preventing soggy batter. Generously season both sides with salt.
Cut peeled potatoes into your preferred shapes. Rinse them in a large bowl of water, drain, and pat dry with paper towels.
Heat enough vegetable oil in a large pot or deep fryer over medium-high heat. Fry the chips in batches for about 10 minutes without browning. Remove and drain on paper towels. Rest for 10 minutes.
Reheat the oil to 400°F and fry the chips again in batches until crispy and golden brown, about 5 minutes. Drain and season with salt.
Coat each cod fillet with flour, then dip into the prepared batter, ensuring even coverage. Use tongs to carefully place them into the hot oil.
Fry until golden brown on both sides, about 4-5 minutes depending on the thickness of the fillets.
Once cooked and crispy, remove the fish from the oil and place on a paper towel-lined plate to absorb excess oil.
Serve the fish with the crispy fries for a classic British meal. Add tartar sauce or malt vinegar on the side for extra flavor.