Crispy Panko-Crusted Cod with Lemon Herb Sauce

Buttery seasoned panko crumbs make a wonderfully crisp topping for cod fillets. This panko crusted cod is flavored with a simple spice blend and a touch of lemon, and it comes together quickly with just nine ingredients in under 30 minutes.

Cod is a mild, slightly sweet white fish with tender, flaky flesh and a firm texture that holds up well to a crunchy coating. Topped with golden, buttery panko seasoned with lemon zest and a blend of spices, it becomes an elegant yet easy weeknight main.

The panko is combined with melted butter and lemon zest for richness and brightness, then pressed onto cod that has been brushed with a thin lemon-mayonnaise mixture. That mayo-lemon layer adds moisture and flavor while helping the crumbs cling to the fish so you get a thick, crisp crust after baking.

This baked panko cod delivers big flavor and satisfying crunch with minimal fuss — just nine straightforward ingredients and a short bake time make it a reliable dinner any night of the week.

Recipe ingredients

Ingredient notes

• Cod: plan for about four 4-ounce portions of boneless, skinless cod fillets (1 lb / 454 g total).
• Butter: unsalted butter is called for, but salted is fine if you reduce the added salt slightly.
• Panko: use plain, unseasoned panko breadcrumbs for the best texture.
• Lemon: you’ll need the zest plus 2 teaspoons of fresh lemon juice.

Equipment needed

This recipe is simple and doesn’t require specialized tools, but a few helpful items make prep easier. Alternatives are provided so you can use what you already own.

• Parchment paper: prevents sticking; substitute a silicone baking mat or spray the pan with non-stick cooking spray.
• Microplane (or fine box grater): produces fine lemon zest. A box grater works well if you don’t have a microplane.
• Mini whisk or fork: for mixing the lemon-mayo glaze.
• Pastry brush: useful for applying the lemon-mayo, or use the back of a spoon to spread a thin layer.

Step by step photos

Follow these steps to make the panko crusted cod.

1. Preheat the oven and line a baking sheet with parchment. Mix the salt, pepper, paprika, and garlic powder to make the seasoning blend.
2. Finely zest the lemon. In a medium bowl combine panko, melted butter, lemon zest, and about half of the seasoning blend; mix until the crumbs are evenly coated.
3. Whisk together the mayonnaise and 2 teaspoons of fresh lemon juice to make a thin lemon-mayo glaze that will help the panko adhere.
4. Pat the cod fillets dry with paper towels. Season all sides of the fish with the remaining seasoning mix.
5. Brush the tops and sides of the cod with the lemon-mayo glaze, then press the panko mixture onto the tops and sides so the fillets are evenly coated. Gently pat the crumbs in place without compacting them.
6. Place the coated fillets on the prepared baking sheet. Bake at 425°F (220°C) for 10–15 minutes, or until the crust is golden and the thickest part of the fish reaches 145°F (63°C).

Tips and tricks

• Salt measurements vary by type: Diamond Crystal kosher salt is lighter than Morton or table salt. For fine table salt use ½ teaspoon; for Morton kosher use about ½ teaspoon + 1/8 teaspoon. Or measure 3 grams by weight for accuracy.
• To melt butter quickly, microwave for 15–20 seconds and cover the bowl with a paper towel to prevent splatter.
• When applying panko, pat gently. Pressing too hard compacts the crumbs and reduces crispiness.
• Check doneness with an instant-read thermometer at the thickest part of the fillet, starting at 10 minutes; oven temperatures and fish thickness affect cooking time.

Substitutes and additions

This baked cod recipe is very adaptable. Ideas to customize it:

• Add spices like cayenne, dried thyme, smoked paprika, or onion powder to the seasoning blend.
• If you use a pre-seasoned blend that contains salt (Old Bay, Cajun, etc.), reduce the added salt.
• Stir finely grated Parmesan into the panko for extra savory flavor, or fold in chopped fresh herbs such as parsley or thyme.
• Swap cod for a similar white fish like haddock or tilapia and adjust bake time to reach 145°F.
• Instead of the lemon-mayo “glue,” try grainy mustard or even melted butter for a different flavor and texture.

Storage and reheating instructions

• This dish is best enjoyed immediately for the crispiest texture.
• Leftover cooked fish is generally safe in the refrigerator for 3–4 days, but the panko will soften over time. Store leftovers in an airtight container and eat as soon as possible.
• To reheat, place on a greased baking sheet and warm in a 350°F (177°C) oven until heated through, about 10–12 minutes depending on portion size.
• Freezing is technically possible but not recommended, as the panko loses its crispness after thawing.

Serving suggestions

• Garnish with fresh chopped herbs such as parsley, dill, chives, or basil for color and freshness.
• Finish with an extra squeeze of lemon and a sprinkle of flaky sea salt.
• Offer tartar sauce or a simple lemon aioli on the side to make the dish kid-friendly.
• Pair with roasted potatoes, asparagus, or a light salad for a balanced meal.

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