Fish and Chips with Mushy Peas

Few British dinners are as instantly recognisable as fish and chips with mushy peas: crisp battered white fish, thick-cut chips and a soft, savoury pea side served with malt vinegar and lemon. The dish works because each element has a clear purpose — cold beer batter gives the fish a light, crunchy coating, the chips are fried twice for fluffy centres and crisp edges, and the peas bring freshness from mint and richness from butter. It is hearty without being fussy, best served straight from the fryer while the batter is still crackling and the chips are hot.
Cuisine style British chip-shop classic
Flavor profile Savoury • Salty • Lightly fresh
Techniques Deep-frying • Twice-frying chips • Simmering
Key equipment Large pot • Thermometer • Tongs
Cooking style Crowd-friendly
Time commitment Under 1 hour

Why this recipe works

  • Crisp, light batter: Well-chilled beer and baking powder help the batter fry into a delicate, crunchy coating around the fish.
  • Proper chip texture: The chips are cooked twice: first to soften the potato, then again at a higher heat for a crisp golden exterior.
  • Balanced richness: Malt vinegar, lemon and fresh mint cut through the fried elements and keep the plate from feeling heavy.

Get the most out of this recipe

Texture tips

  • Dry the potatoes well: After rinsing, pat the chips thoroughly dry so they fry cleanly and develop a better crust.
  • Keep the batter cold: Mix the beer batter just before frying and keep it chilled for the lightest finish.
  • Watch the fish closely: Fry only until the coating is golden and the fish flakes easily; overcooking can make lean white fish dry.

Common mistakes

  • Letting the oil temperature drift: Use a thermometer and allow the oil to return to 180°C (355°F) before frying the fish or finishing the chips.
  • Overfilling the pot: Fry in batches so the oil stays hot and the batter has space to crisp rather than steam.
  • Over-mashing the peas: Keep the mushy peas roughly mashed and spoonable, with some texture rather than a smooth purée.

Timing notes

  • Serve straight away: Fish and chips are at their best immediately after frying, while the batter and chips are still crisp.
  • Organise the frying order: Blanch the chips first, prepare the peas while the oil temperature rises, then finish the chips before frying the fish.
  • Best on the day: Leftovers can be reheated, but the fresh-fried texture is noticeably better when served the same day.

Authenticity notes

  • Classic accompaniments: Malt vinegar, lemon wedges and mushy peas are traditional partners for British-style fish and chips.
  • Beer batter choice: Lager gives a clean, light batter, while ale can be used for a slightly maltier flavour.

Equipment you'll need

Ingredients
Instructions
Print
  1. Peel the potatoes and cut into thick chips, about 1.5 cm. Rinse under cold water until the water runs clearer, then pat very dry. Heat the sunflower oil in a large pot to 140°C (285°F).
  2. Fry the chips in 2 batches for 8 to 10 minutes each, until pale and softened but not coloured. Lift out with tongs and let them drain while you bring the oil up to 180°C (355°F). Keep the oil on the heat.
  3. Meanwhile, simmer the frozen peas in a saucepan with a splash of water for 4 to 5 minutes until tender. Drain well, then stir in the butter, most of the mint, and a pinch of the fine sea salt and black pepper. Mash roughly so they are spoonable but still textured, then cover to keep warm.
  4. In a mixing bowl, whisk together the plain flour, baking powder, remaining fine sea salt and remaining black pepper. Whisk in the chilled lager beer until you have a smooth batter the consistency of double cream. Cut the fish into 4 portions and pat dry.
  5. When the oil reaches 180°C (355°F), fry the chips again for 4 to 6 minutes until deep golden and crisp, then lift out and drain. Dip each piece of fish into the batter, let the excess drip off, then lower into the oil. Fry for 4 to 6 minutes, turning once, until crisp and golden and the fish flakes easily.
  6. Finely chop the remaining mint and stir it through the peas. Cut the lemon into wedges. Serve the fish and chips with mushy peas, with malt vinegar and lemon for squeezing.

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Recipe notes

Tips

  • Dry chips thoroughly before frying to reduce spluttering and help them crisp up.
  • Keep the batter cold and the oil at a steady 180°C (355°F) for the lightest, crispest coating.
  • If serving anyone who is pregnant, elderly, or immunocompromised, make sure the fish is cooked until piping hot throughout and flakes easily.

Substitutions

  • Replace lager beer with ale beer for a slightly richer, maltier batter.
  • Replace sunflower oil with vegetable oil for frying.

Storage

  • Refrigerate up to 2 days
  • Fish and chips are best eaten straight away. If you have leftovers, cool quickly and refrigerate; reheat on a baking tray in a 220°C (430°F) oven until piping hot and crisp. Reheat the peas gently in a saucepan with a small splash of water.

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Recipe overview

  • Servings: 4 servings
  • Total time: 55min (45min active)
  • Difficulty: Medium
  • Cuisine: British
  • Allergens:
    Fish Gluten Milk Wheat
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