America's Test Kitchen Fish Pie Recipe: Crispy Top, Silky Middle, Zero-Sog Risks

This America's Test Kitchen fish pie delivers the perfect balance of crispy golden potato topping and silky, flavorful filling—no soggy corners in sight.

After years of testing, we’ve perfected the technique: using flaky white fish like cod or haddock, a rich béchamel sauce, and a starchy potato topping that stays crispy even after baking. The secret?

A precise ratio of butter and milk in the sauce, and a high-heat bake to set the crust properly.

What sets this recipe apart is its foolproof method for achieving that restaurant-quality texture without the guesswork. We’ve eliminated common pitfalls like watery fillings or undercooked fish by pre-cooking the fish just until tender, then layering it with a velvety white sauce before sealing it with a buttery potato crust.

The result? A pie that’s crispy on top, creamy in the middle, and packed with flavor in every bite.

This fish pie is ideal for family dinners, potlucks, or even a comforting weeknight meal. Serve it with a simple side salad or steamed green beans to balance the richness, and you’ll have a dish that’s both satisfying and impressive.

The aroma alone will have everyone at the table asking for seconds.

Ready to master this classic? The instructions walk you through every step—from prepping the fish to baking the pie to that perfect crispy finish. Let’s get started!

Ingredients for america's test kitchen fish pie

Sixteen ingredients for a foolproof fish pie with crispy golden crust and silky filling.

The fish is non-negotiable here—flaky white fish like cod or haddock is essential for that melt-in-your-mouth texture. Whole Foods or your local seafood counter will have the freshest cuts, but frozen works too if labeled 'previously frozen.' Look for fillets with even thickness—1-inch thick is ideal. The potatoes should be starchy russets (not waxy)—Idaho potatoes are perfect. Don't skip peeling them, as the skin can make the topping uneven. For the butter, Plugrá or Land O'Lakes are reliable brands, but any unsalted will work if it's cold and firm.

No white wine? Fish or chicken stock with a splash of lemon juice gets you close. Fresh parsley is ideal, but dried parsley at one-third the amount works in a pinch. The nutritional yeast adds depth without overpowering—Bob's Red Mill is a good brand if you're new to it. For the flour, King Arthur or Gold Medal are consistent choices. If you're making this ahead, pre-cook the fish and sauce separately, then assemble just before baking to keep everything crisp. The lemon juice should be freshly squeezed—bottled juice lacks brightness.

This pie reheats beautifully—350°F for 20 minutes restores that crispy texture. Store leftovers in an airtight container for up to 4 days in the fridge, or freeze for 3 months. The topping stays crispy when reheated if you cover it loosely with foil. For serving, a simple side salad with lemon vinaigrette balances the richness perfectly. The aroma alone will have everyone at the table asking for seconds—trust me on this

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

Here's the method that guarantees a golden crust, creamy filling, and never a soggy bite.

Preheat oven to 425°F. Peel and slice the 3 lb russet potatoes into ⅛-inch thick rounds using a mandoline for evenness. Toss immediately with 1 tbsp of the 1.5 tsp salt and ½ cup of the 0.75 cup unsalted butter, cutting the butter into small pieces. Spread in a single layer on two parchment-lined baking sheets.

Bake for 25-30 minutes until edges are golden brown and a knife slides in easily. Flip each sheet and bake another 10 minutes for even crispiness. Remove and let cool—this pre-baking prevents the classic soggy top while keeping the interior tender.

In a large skillet, melt ¼ cup of the remaining 0.75 cup unsalted butter over medium heat. Add the 2 minced shallots and 4 minced garlic cloves, cooking for 3-4 minutes until softened but not browned. Deglaze with the 0.5 cup dry white wine, scraping up any browned bits.

Add the 1.5 lb flaky white fish fillets, breaking them into 1-inch chunks. Cook just until opaque (3-4 minutes), then remove from heat. Stir in 1 tbsp lemon juice, 1 tbsp nutritional yeast, and ½ tsp ground black pepper. Set aside to cool completely—this prevents the filling from turning rubbery when baked later.

In a saucepan, melt the remaining ¼ cup unsalted butter over medium heat. Whisk in the 0.5 cup all-purpose flour and cook for 1-2 minutes until golden. Gradually whisk in the 1.5 cups whole milk and 0.5 cup heavy cream, cooking until thickened enough to coat the back of a spoon (5-7 minutes).

Remove from heat and stir in the remaining ½ tsp salt and ½ tsp ground black pepper. The sauce should be smooth and velvety—if it's too thick, whisk in 1-2 tbsp milk to reach a pudding-like consistency. Let cool slightly before assembling.

Preheat oven to 375°F. In a 9x13-inch baking dish, spread half the béchamel sauce on the bottom. Arrange half the potato slices in a single layer, slightly overlapping. Add half the fish filling, then repeat with remaining sauce, potatoes, and fish. Press gently to compress layers—this prevents expansion during baking.

Top with the remaining potato slices, pressing down firmly to create a tight seal. The goal is to trap steam inside while maintaining a crisp exterior. Bake uncovered for 30-35 minutes until the top is deep golden brown and the filling is just set. Let rest 15 minutes before serving—this ensures clean slices and maximum crisp.

Garnish with 0.25 cup chopped fresh parsley just before serving. The pie should have a crispy, crackly crust that gives way to a creamy, fish-rich filling. Use a sharp knife to cut through the crust cleanly—wipe the blade between slices to maintain presentation.

Serve with a simple green salad and crusty bread. The contrast of textures—crisp top, creamy middle, tender fish—makes every bite satisfying. Leftovers reheat beautifully in the oven at 350°F for 15 minutes, covered with foil.

Make-ahead tips for this america's test kitchen fish pie

Prep Ahead Strategy

Pre-cook the fish filling and béchamel sauce up to 2 days ahead—store them separately in airtight containers in the fridge. When ready to assemble, simply reheat the sauce gently over low heat until warm, then layer with the pre-cooked fish and potatoes.

This saves 2 hours of active prep time on busy days. 📅

Potato Topping Prep

Slice and partially bake the potato topping up to 1 day ahead—just store it in a single layer on a parchment-lined tray in the fridge.

Reheat at 350°F for 10 minutes before assembling to restore crispiness. For extra insurance, sprinkle with 1 tbsp flour before reheating to prevent sticking. ❄️

Freezer-Friendly Assembly

Assemble the pie completely (including the potato topping) and freeze it unbaked in a sealed container for up to 1 month. When ready to bake, thaw overnight in the fridge, then bake as directed—just add 5-10 minutes to the baking time.

This is perfect for holiday meals or when hosting. ❄️

Reheating Leftovers

Reheat individual slices at 350°F for 10-12 minutes covered with foil, then uncover for the last 2 minutes to restore crispiness. For larger portions, cover loosely with foil and bake at 350°F for 15 minutes, then broil for 1-2 minutes to crisp the top.

Never microwave—it turns the potato topping soggy. 🔥

Make-Ahead Garnish

Chop the fresh parsley and store it in a small airtight container in the fridge for up to 5 days. Add it just before serving to keep the herbs vibrant and flavorful. For a shortcut, use dried parsley at one-third the amount if needed. 🌿

Time-Saving Shortcut

Use pre-cooked fish (like canned cod or smoked haddock) to cut prep time in half. Drain and flake the fish, then season with lemon juice, salt, and pepper before assembling. This version works well for weeknight dinners when fresh fish isn’t available. 🐟

Frequently asked questions