# Beer-Battered Fish and Chips

Beer-battered fish and chips is the classic comfort meal: crackling golden batter around flaky white fish, with thick chips that are crisp outside and fluffy inside. Done right at home it beats most takeaways.

The secrets are a very cold batter, hot oil held at the right temperatures and frying the chips twice. It takes about an hour, and nearly all of it is easy.

- Total time: 1 h (prep 30 min, cook 30 min)
- Serves: 4
- Per serving (estimated): 780 kcal, 38 g protein
- Cuisine: British. Category: Main course. Diet: dairy-free.

## Ingredients

- 700 g cod or haddock fillets, cut into 4 pieces
- 1.2 kg russet potatoes, cut into thick chips
- 1.5 cup all-purpose flour, plus 1/2 cup for dusting
- 1 tsp baking powder
- 1 tsp kosher salt, plus extra for finishing
- 1/2 tsp black pepper
- 1 tsp paprika
- 1.25 cup cold light beer or sparkling water
- 1.5 l vegetable or peanut oil for frying
- 1 lemon, cut into wedges
- 1/2 cup tartar sauce, to serve
- 1 tbsp malt vinegar, to serve

## Method

1. Cut the potatoes into 1.5 cm thick chips. Soak them in cold water for 20 minutes, then drain and dry them very well with towels.
2. Pour the oil into a 5 quart (5 l) heavy pot until it is 6 cm deep. Heat to 300°F (150°C) and fry the chips in two batches for 6 minutes, until soft and pale. Drain on a rack.
3. Pat the fish dry and cut into portions. Season with salt and pepper. Dust lightly in the extra flour and shake off the excess.
4. Whisk the 1.5 cups flour, baking powder, salt, pepper and paprika. Pour in the cold beer and stir just until smooth. Small lumps are fine.
5. Raise the oil to 375°F (190°C). Dip a fillet in the batter, let the extra drip off, then lower it away from you into the oil.
6. Fry 2 pieces at a time for 5 to 6 minutes, turning once, until the batter is deep golden and puffed and the fish reaches 145°F (63°C). Drain on a wire rack.
7. Return the oil to 375°F (190°C) and fry the chips again for 3 to 4 minutes, until golden and crisp. Drain and salt them straight away.
8. Serve the fish and chips right away with lemon, tartar sauce and malt vinegar.

## Why it works

- Soaking the cut potatoes removes surface starch so the chips crisp instead of turning gummy.
- Frying chips twice, first gently and then hot, cooks the inside through before the outside crisps.
- A dusting of flour gives the wet batter something to grip so it does not slide off the fish.
- Cold beer and baking powder create bubbles in the batter, which makes a light and crackly coating.
- Draining on a rack, not paper towels, stops the underside steaming and going soft.

## The science

- **Why cold batter is crisper.** Cold batter slows gluten from forming and keeps the flour mix from turning heavy. When it hits hot oil, water turns to steam quickly and leaves a network of tiny air pockets. The result is a thin, shattering crust, not a doughy shell.
- **The twice-fried chip.** The first fry at a low temperature gelatinizes the starch inside the potato until it is fluffy. The second fry at high heat dries the outside and starts browning. Skipping either stage gives chips that are either raw in the middle or limp.
- **Batter protects the fish.** The crust acts like a lid, trapping moisture so the fish steams gently inside while the outside fries. That is why the fish stays juicy at 145°F (63°C) even though the oil is far hotter than that.

## Tips

- Use a thermometer and hold the oil near 375°F (190°C), adding fish only after it recovers.
- Keep the batter bowl over a larger bowl of ice to stay cold while you fry.
- Salt the chips the moment they leave the oil so the salt sticks.

## Mistakes to avoid

- Putting wet fish in the batter makes the coating slide off, so dry it and dust it with flour first.
- Frying at too low a temperature makes greasy fish, so wait for the oil to climb back to 375°F (190°C) between batches.
- Overmixing the batter builds gluten and makes it chewy, so stir only until just combined.

## Variations and swaps

- Swap the beer for sparkling water for an alcohol-free batter.
- Add a spoon of Old Bay or garlic powder to the batter for more flavor.
- Serve with mushy peas and curry sauce for a British chip shop style plate.
- Swap cod for haddock, pollock or tilapia, which all have a mild flavor.
- Swap the potatoes for sweet potatoes, fried once for 5 minutes at 375°F (190°C).
- Swap the all-purpose flour for a gluten-free flour blend and cornstarch.

## Storage

Fish and chips are best eaten right away. Leftovers keep in the fridge for up to 3 days; reheat on a rack in a 400°F (200°C) oven or an air fryer until hot through to 165°F (74°C) and crisp.

## FAQ

**What is the best fish for fish and chips?**

Cod and haddock are the traditional choices because they are mild and flake into large, tender pieces. Pollock and tilapia also work well. Choose thick fillets of about 2 cm so they stay juicy.

**What temperature do you fry fish and chips?**

Fry the fish at 375°F (190°C), and fry the chips first at 300°F (150°C) and then again at 375°F (190°C). A thermometer helps you keep the oil steady, which matters for a crisp, not greasy, result.

**Why does my batter fall off the fish?**

The fish was probably wet, or the batter was too thin. Pat the fish very dry and dust it in flour before dipping so the batter has something to hold onto.

**Can I use beer that is not light?**

Yes, but a light lager or pilsner gives the cleanest flavor. Dark or hoppy beers can make the batter taste bitter. Sparkling water also works if you want no alcohol.

**Can I make fish and chips in the oven or air fryer?**

You can bake or air fry breaded fish, but a wet beer batter will not set and will drip. For an oven version use a flour, egg and panko coating instead.

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Source: https://cookingscientist.com/recipes/beer-battered-fish-and-chips (Cooking Scientist). Learn the science of cooking in the Cooking Scientist app for iPhone and iPad: https://apps.apple.com/app/id6830326846