Instant Pot Cod Recipe: Flaky White Fish in Minutes

Cooking cod in an Instant Pot produces flaky, perfectly tender fish without the fuss of traditional methods. This technique locks in moisture while infusing subtle flavors from minimal seasonings.

The beauty of this approach is its simplicity—just a few minutes of prep, 5 minutes of cooking, and natural pressure release for consistent results. No risk of overcooking or drying out the delicate fish.

What emerges is white cod with a delicate texture that separates effortlessly at the touch of a fork. The fish absorbs the cooking liquid, creating a light broth that enhances its natural sweetness.

Ideal for busy weeknights when you want restaurant-quality seafood with minimal effort. The Instant Pot handles all the precision work for you.

Ingredients for Instant Pot Cod

A handful of fresh ingredients for flaky, tender cod in minutes.

The cod is the star here. Fresh, skinless fillets from a trusted fishmonger or the seafood counter at Whole Foods work best (the good stuff, not the pre-frozen kind). Look for fillets that are firm, translucent, and smell like the ocean—not fishy. If frozen, thaw overnight in the fridge. The butter and olive oil combo adds richness without overpowering the delicate fish.

No white wine? Fish stock or even water with a splash of lemon juice gets you close. Fresh dill is ideal but dried at one-third the amount works fine (or whatever herb you’ve got). Out of shallots? Yellow onion or leek can substitute. The garlic can be eyeballed, but measure the salt—fish doesn’t need much. For extra flavor, toss in a few peppercorns or a pinch of red pepper flakes.

Cod cooks fast, so eat it fresh. Leftovers? They’ll keep in the fridge for 2 days but the texture changes slightly. The broth freezes well for 3 months—perfect for soups or sauces later. I reheat gently in a skillet with a splash of water (don’t skip this part).

Step-by-Step Instructions for Instant Pot Cod

This method delivers perfectly flaky fish with minimal effort and maximum flavor.

Step 1: Sauté Aromatics for Depth

Set your Instant Pot to Sauté mode on Normal heat. Add the olive oil and butter. When the butter melts and starts to foam, add the finely diced shallot and cook for 2-3 minutes until it turns translucent.

Stir in the minced garlic cloves and cook for 30 seconds until fragrant—don’t let it brown. Add the white wine and bay leaf, then deglaze the pot by scraping up any browned bits with a wooden spoon. This builds a flavorful base for the cod.

Step 2: Layer Ingredients for Even Cooking

Pour in the 1 cup water and stir to combine. Place the 1.5 lb cod fillets in the pot in a single layer, ensuring they don’t overlap. If needed, cut the fillets to fit. Season the cod with sea salt and black pepper.

Add the sliced lemon on top of the cod, distributing the slices evenly. The lemon will infuse the fish with brightness as it cooks. Secure the lid, set the valve to Sealing, and cancel the Sauté function.

Step 3: Pressure Cook to Flaky Perfection

Select the Pressure Cook (or Manual) setting and set the timer for 3 minutes on High pressure. It’ll take about 10-12 minutes for the Instant Pot to come to pressure before cooking begins. The short cook time ensures the cod stays tender and doesn’t overcook.

Once the timer beeps, immediately release the pressure by turning the valve to Venting. This quick release prevents the cod from continuing to cook and becoming rubbery. Open the lid carefully once the pressure has fully released.

Step 4: Garnish and Serve

Using a slotted spatula, gently transfer the cod to serving plates, leaving the cooking liquid behind. Sprinkle the chopped fresh dill over the fish. The cod should be opaque and flake easily with a fork—this is your visual cue it’s perfectly cooked.

Spoon a little of the cooking liquid over the cod if desired, or serve it alongside crusty bread for dipping. The lemon slices can be removed or left on for presentation. This dish is best enjoyed immediately while the fish is at its flakiest.

Pro Cooking Tips for This Recipe

Prevent Overcooking

Cod cooks fast under pressure, so I always set the timer for 3 minutes—never more. The fish continues cooking slightly during pressure release, so immediate quick release is key. I use a wooden spoon to gently test doneness; it should flake with minimal resistance.

Layering Matters

Place fillets in a single layer with space between them for even cooking. If stacking, use a steamer basket to keep fish elevated. I learned this the hard way when my first batch stuck together. Always check that the liquid covers the bottom but doesn’t submerge the cod.

Flavor Boosters

For extra depth, I add 1 tsp Old Bay seasoning to the cooking liquid. A splash of fish stock instead of water enhances the broth. The bay leaf and lemon slices infuse beautifully during the short cook time. 💡

Instant Pot Settings

Use High pressure for best results—Low pressure won’t penetrate the dense fillets as effectively. Ensure your sealing ring is properly seated; I replace mine every 6 months to maintain a tight seal. Always deglaze thoroughly after sautéing to avoid the burn notice.

Rest Before Serving

Let the cod rest for 2-3 minutes after cooking while you prep garnishes. This allows the juices to redistribute. I serve mine with a drizzle of the cooking liquid and a sprinkle of fresh dill for that restaurant-style finish. 🔥

Thickness Adjustments

For fillets thicker than 1 inch, add 1 extra minute of pressure cooking. Thinner fillets may only need 2 minutes. I use a fish spatula to transfer the delicate cod without breaking it apart.

Frequently Asked Questions