Mary Berry Fish Pie Recipe: Flaky Pastry With Creamy Seafood Filling

This fish pie delivers the flaky pastry and creamy filling that define Mary Berry’s signature approach to comfort food. The combination of tender seafood in a velvety sauce, all encased in golden, buttery pastry, creates a dish that’s both impressive and deeply satisfying.

What sets this version apart is the attention to texture contrast – the pastry remains crisp while the filling stays lusciously thick. I’ve perfected the balance of fish varieties and sauce consistency through careful testing, ensuring every bite delivers on the promise of restaurant-quality at home.

The key lies in the layering technique and precise baking temperature. By par-baking the pastry base and using the right fish-to-sauce ratio, you avoid the common pitfall of a soggy bottom. The result is a pie that holds its shape beautifully when served.

This recipe transforms simple ingredients into something extraordinary. The pastry bakes to a perfect golden hue while the filling sets just enough to slice cleanly, revealing the rich seafood within.

Ingredients for Mary Berry Fish Pie

Golden pastry meets velvety seafood in this comfort food classic with restaurant-quality results at home.

The pastry demands precision. King Arthur Flour delivers consistent protein content for flakiness, while European-style butter (like Plugrá) offers higher fat content for superior layers. For the fish, wild-caught cod from Whole Foods provides firm texture that holds up to baking. The smoked haddock—find undyed fillets at specialty seafood counters—adds depth without artificial color.

Short on fresh dill? Dried dill at one-third the amount works, though fresh offers brighter notes. No haddock? Pollock or halibut substitute well. For the shrimp, frozen thawed in ice water (not tap water) prevents mushiness. The milk can be swapped for half-and-half if you want extra richness, but don’t use low-fat—it’ll curdle when heating.

Assemble the pie just before baking—pastry softens if left too long. Leftovers keep 2-3 days refrigerated (reheat in oven to crisp pastry). The filling freezes well for 1 month, but the pastry is best fresh. Always use ice-cold butter and water for the dough.

Step-by-Step Instructions for Creamy Fish Pie with Flaky Pastry

Master the technique for a perfectly balanced pie with tender seafood and golden crust.

Step 1: Prepare the Shortcrust Pastry

In a large bowl, combine the 2.5 cups All-Purpose Flour with the 1 tsp Salt. Add the 1 cup Unsalted Butter, cold and cubed, and work it into the flour with your fingertips until the mixture resembles coarse breadcrumbs with some pea-sized butter pieces remaining.

Gradually add the 0.33 cup Ice Water, a tablespoon at a time, mixing just until the dough comes together. Overworking will develop gluten, resulting in a tough pastry. Form into a disc, wrap in plastic, and chill for 30 minutes—this rest period relaxes the gluten and makes rolling easier.

Step 2: Create the Creamy Seafood Filling

In a large saucepan, melt the 3 tbsp Unsalted Butter over medium heat. Add the finely diced 1 whole Yellow Onion and sauté until translucent, about 5 minutes. Stir in the 3 tbsp All-Purpose Flour to form a roux, cooking for 2 minutes to eliminate the raw flour taste.

Whisk in the 1.5 cups Whole Milk and 0.5 cup Heavy Cream gradually to avoid lumps. Bring to a gentle simmer, stirring constantly, until the sauce thickens enough to coat the back of a spoon. Add the 1 tbsp Dijon Mustard, 1 tbsp Lemon Zest, and 0.25 cup Fresh Dill, then fold in the 1.5 lb White Fish Fillets, 0.5 lb Smoked Haddock Fillet, and 0.5 lb Large Shrimp. Simmer for 5 minutes until the fish flakes easily.

Step 3: Assemble the Pie

Preheat your oven to 400°F. Transfer the seafood filling to a 9×13-inch baking dish and set aside. On a lightly floured surface, roll out the chilled pastry to a rectangle slightly larger than your dish. The dough should be about ⅛-inch thick—thin enough to cook through but thick enough to maintain structure.

Drape the pastry over the filling, pressing the edges to seal. Trim any excess dough and crimp the edges with a fork for a decorative finish. Cut a few small slits in the top to allow steam to escape, preventing a soggy crust.

Step 4: Bake to Golden Perfection

Whisk the 1 whole Egg with a tablespoon of water to create an egg wash. Brush this evenly over the pastry, which will give it a beautiful golden-brown finish. Place the pie on a baking sheet to catch any potential spills.

Bake in the preheated oven for 25-30 minutes until the pastry is deep golden brown and the filling is bubbling at the edges. The pastry should be flaky to the touch and the egg wash should have created a glossy sheen. Let rest for 10 minutes before serving to allow the filling to set slightly.

Make-Ahead Tips for This Dish

Prep the Pastry Early

I always make the pastry dough first—it needs 30 minutes in the fridge to rest. You can prep this the night before and store it wrapped in plastic at 40°F for up to 24 hours. Just let it sit at room temperature for 10 minutes before rolling. 💡

Assemble Ahead Strategy

Complete the filling and transfer it to your baking dish, then cover tightly with plastic wrap and refrigerate. This can be done up to 6 hours ahead. Roll out the pastry just before baking to prevent it from drying out or becoming soggy.

Freeze the Filling

The creamy seafood filling freezes beautifully for up to 1 month in an airtight container. Thaw overnight in the fridge, then assemble and bake as directed. The pastry is best made fresh, though. ❄️

Bake Time Adjustments

If baking from refrigerated, add 5-10 minutes to the cooking time. For frozen filling, increase to 40-45 minutes total. Always check that the pastry is golden brown and the filling is bubbling before removing from the oven.

Reheating Leftovers

Store leftovers in the fridge for up to 3 days. Reheat individual portions in a 350°F oven for 15-20 minutes to crisp the pastry. Microwaving works in a pinch, but the crust won’t stay flaky. 🔥

Egg Wash Timing

Only brush the egg wash on just before baking—doing it too early makes the pastry gummy. Use 1 whole Egg mixed with 1 tbsp water for that signature Mary Berry golden finish. This small step makes a big difference.

Frequently Asked Questions