The Mary Berry Luxury Fish Pie is a classic British baked dish made from flaky white fish, smoked fish, and seafood cooked in a creamy béchamel-style sauce, often enriched with cheese or cream. It’s topped with a thick layer of mashed potatoes, which turn golden and crisp in the oven. Mary Berry’s version balances traditional comfort with refined flavor, adding a rich, luxurious touch with ingredients like prawns, mustard, and fresh herbs.
White fish fillets (e.g., cod or haddock) – 300g, skinned and boned
Smoked haddock – 300g, skinned and boned
Raw king prawns – 200g, peeled and deveined
Milk – 600ml
Bay leaves – 2
Butter – 50g
Plain flour – 50g
Double cream – 100ml
Dijon mustard – 1 teaspoon
Fresh parsley – 2 tablespoons, chopped
Salt and black pepper – to taste
Floury potatoes (e.g., Maris Piper) – 1kg, peeled and cut into chunks
Butter – 75g
Warm milk – 100ml
Salt and pepper – to taste
Grated mature cheddar – 50g (optional)
Cut fish into bite-sized chunks.
Place fish and bay leaves in a saucepan with 600ml milk.
Simmer gently for 6–8 minutes until the fish is just cooked through.
Remove fish with a slotted spoon and set aside. Reserve the milk for the sauce.
In a clean pan, melt butter and stir in flour to form a roux.
Cook for 1 minute, then gradually add reserved milk, whisking to avoid lumps.
Simmer for 4–5 minutes until thickened.
Stir in cream, mustard, parsley, salt, and pepper.
Fold in cooked fish and raw prawns. Remove from heat and let cool slightly.
Boil potatoes in salted water for 15–20 minutes until tender.
Drain and mash with butter and warm milk until smooth and creamy. Season to taste.
Preheat oven to 200°C (180°C fan) or 400°F.
Spoon fish mixture into a large ovenproof dish.
Top evenly with mashed potato, starting from the edges and working inward to seal.
Fluff the top with a fork and sprinkle with grated cheese, if using.
Bake for 25–30 minutes or until golden and bubbling.
Let sit for 5 minutes before serving.