America's Test Kitchen Fish Pie Recipe: Flaky Crust Hugs Creamy Cod and Potato Layers

America’s Test Kitchen’s fish pie delivers the perfect balance of creamy, velvety filling and a flaky golden crust that seals in every flavor. This recipe transforms tender cod, rich béchamel, and fluffy potatoes into a comforting, restaurant-worthy dish with precision techniques that guarantee success.

The secret lies in baking the potato layer first to create a sturdy base, then layering the cod and sauce before sealing with a crisp pastry top.

What sets this fish pie apart is the attention to detail—from reducing the sauce to the right consistency to ensuring the crust achieves that signature flaky texture. The cod stays moist and tender, while the potatoes absorb the creamy sauce without becoming soggy.

This is the kind of dish that feels indulgent yet remains balanced, making it ideal for a cozy weeknight dinner or a special occasion.

The assembly process is methodical but straightforward, with each layer playing a crucial role in the final result. The crust isn’t just decorative; it’s a protective seal that keeps the filling warm and the flavors concentrated.

Whether you’re a seasoned home cook or new to baking, this recipe delivers professional-quality results with foolproof techniques.

Pair it with a simple green salad or steamed vegetables to round out the meal, or serve it as-is for a hearty, satisfying dish that’s sure to impress. Let’s get started on creating this creamy, flaky masterpiece.

Ingredients for america's test kitchen fish pie

Six layers of perfection: tender cod, fluffy potatoes, velvety sauce, and a golden crust.

The cod is the star—look for fresh, skinless fillets with a firm texture. Whole Foods or your local fishmonger will have the best quality; avoid pre-cut pieces if possible. For the potatoes, Russet is non-negotiable—they hold their shape and absorb the sauce beautifully. If you're prepping ahead, slice the potatoes and soak them in cold water for 30 minutes to remove excess starch, then pat dry. The crust? Pepperidge Farm or Trader Joe's frozen puff pastry delivers that signature flaky texture with minimal effort.

No white wine? Dry vermouth or extra fish stock works in a pinch. Fresh dill is ideal, but dried dill at one-third the amount gets you close. The flour in the béchamel should be whisked into the cold butter slowly to avoid lumps—use a whisk, not a spoon. For extra richness, add 2 tablespoons of sour cream to the sauce. If your pie crust is pre-baked, brush it with melted butter before adding the filling to create a golden seal. The lemon zest can be zested from 1 large lemon or 2 small ones—just make sure it's fresh.

The potato layer should be baked first—this creates a sturdy base that holds up to the cod and sauce. Assemble the pie on a parchment-lined baking sheet for easy transfer. Store leftovers in an airtight container for 3-4 days in the fridge, or freeze for up to 3 months. To reheat, cover with foil and bake at 375°F for 20 minutes. The crust reheats beautifully, so don't skip this step—it's worth the extra minute.

Step-by-step instructions for america's Test Kitchen fish pie

Here's the precise method for building layers of tender cod, velvety potatoes, and a golden crust.

Preheat your oven to 375°F. In a large pot, bring 4 cups water to a boil and add the 2.5 lb russet potatoes cut into ½-inch slices. Cook for 5 minutes until just tender but still firm to the bite. Drain immediately and spread the potatoes on a baking sheet to cool slightly.

While still warm, arrange the potato slices in a single layer on the bottom of a 9x13-inch baking dish. Overlap them slightly to create an even base. This first layer will form the foundation for your pie, ensuring each bite contains both creamy potato and flaky crust.

Heat 2 tablespoons olive oil in a large skillet over medium-high heat. Add the 1.5 lb cod fillets cut into 1-inch pieces and cook for 2-3 minutes per side until golden brown and just opaque in the center. Remove and set aside.

In the same skillet, melt ½ cup unsalted butter over medium heat. Add the 2 minced shallots and 4 minced garlic cloves, cooking for 2 minutes until fragrant. Deglaze with ½ cup dry white wine, scraping up any browned bits. Add 1.5 cups fish stock and simmer for 5 minutes to reduce slightly.

In a separate saucepan, combine 1.5 cups heavy cream, ½ cup whole milk, ½ cup all-purpose flour, 1 tbsp lemon zest, 1.5 tsp salt, and ½ tsp black pepper. Whisk over medium heat until thickened to a pudding-like consistency (3-4 minutes). Remove from heat and stir in the ¼ cup chopped fresh dill.

Spread half of the creamy mixture over the potato layer in your baking dish. Arrange the seared cod pieces evenly over the cream, then top with the remaining sauce. The cod should be completely submerged in the creamy mixture to ensure perfect moisture during baking.

Unfold the 1 sheet store-bought pie crust and place it over the top of the baking dish. Trim any excess crust hanging over the edges. Brush the crust with the 1 beaten egg for a golden finish. Cut a few small slits in the center to allow steam to escape.

Bake for 35-40 minutes until the crust is golden brown and the filling is bubbling at the edges. The pie is done when the internal temperature reaches 165°F and the crust is crisp to the touch. Let rest for 15 minutes before serving to allow the layers to set properly.

Use a sharp knife to cut through the crust and into the filling, creating clean slices. The result should be tender, flaky cod pieces suspended in creamy sauce, with each bite containing both potato and crust. Serve immediately with a simple green salad or steamed vegetables to complement the rich flavors.

This pie delivers on the promise of a creamy, flaky masterpiece - the crust stays crisp while the filling remains velvety, and the cod maintains its delicate texture throughout every layer.

Serving suggestions for leftovers

Crisp Salad Contrast

A bright arugula salad with lemon vinaigrette cuts through the richness beautifully. Toss 4 cups baby arugula with 2 tbsp extra-virgin olive oil, 1 tbsp fresh lemon juice, ½ tsp Dijon mustard, and a pinch of flaky sea salt.

The peppery bite refreshes your palate after each creamy bite of pie. 🥗

Steamed Greens Balance

Lightly steamed haricots verts or broccolini add vibrant color and fiber to your plate. Blanch 2 bunches haricots verts in boiling water for 2 minutes, then shock in ice water.

Toss with 1 tbsp melted butter and zest of ½ lemon for a simple yet elegant pairing. The crisp texture contrasts perfectly with the pie's richness.

Crusty Bread Perfection

Serve with warm sourdough bread or baguette slices for dipping. Toast 6 slices until golden, then rub with a garlic clove for extra flavor. The crust absorbs the creamy sauce beautifully, making every bite more satisfying. I always keep a baguette on hand for this exact purpose.

Wine Pairing Harmony

A crisp Sauvignon Blanc from New Zealand or Chardonnay with citrus notes complements the pie's creamy filling. The acidity cuts through the richness while enhancing the lemon zest in the sauce. For red wine lovers, a light Pinot Noir works surprisingly well. 🍷

Garnish for Elevation

Add a final touch with chopped fresh dill or lemon wedges on the plate. The dill echoes the flavor in the filling, while the lemon brightens each bite. A sprinkle of flaky sea salt right before serving enhances all the flavors. These small details make the dish feel restaurant-quality.

Make-Ahead Serving

If serving leftovers, reheat slices covered with foil at 375°F for 15 minutes to restore crispness. Garnish with extra lemon zest or fresh dill to revive the flavors.

The pie actually tastes better the next day as the flavors meld together. This makes it perfect for meal prep and special occasions alike. 💫

Frequently asked questions