Frozen Salmon Instant Pot Recipe: Flaky and Moist in Minutes

Cooking frozen salmon perfectly in an Instant Pot is easier than you think. This method delivers flaky, moist results every time without thawing first.

The secret is using the steam function with precise timing. I developed this technique after too many dry, overcooked salmon attempts. It works with any cut of frozen fillets.

What you get is tender, perfectly cooked salmon that maintains its natural flavor and texture. The Instant Pot locks in moisture while cooking gently and evenly.

Ready in under 15 minutes from start to finish, this is the quickest way to get restaurant-quality salmon on your dinner table.

Ingredients for Frozen Salmon Instant Pot

Minimal ingredients for maximum flavor. Salmon stays moist and flaky every time.

The salmon is the star here. Wild-caught frozen fillets work best—look for ones that are flash-frozen at peak freshness. Trader Joe’s and Costco have great options. If using skin-on, place the fillets skin-side down on the trivet. The Instant Pot’s steam function is key, so make sure your seal is tight and your water measurement is precise.

No fresh dill? Dried dill at half the amount works in a pinch. Out of Dijon? Regular mustard plus a pinch of sugar gets you close. The honey can be swapped for maple syrup if you prefer. If you don’t have lemon, white wine or apple cider vinegar adds the acidity you need. The olive oil can be any neutral oil, but extra-virgin adds a nice depth.

Cooked salmon keeps in the fridge for 2-3 days—store it in an airtight container. It doesn’t freeze well, so enjoy it fresh. The garnishes (lemon, dill) are best added fresh, so prep those just before serving for maximum impact.

Step-by-Step Instructions for Frozen Salmon Instant Pot

Here’s the method. Straightforward, tested, works every time.

Step 1: Prepare the Instant Pot and Frozen Salmon

Pour the 1 cup Water into the Instant Pot and place the trivet inside. This creates the steam needed to cook the salmon perfectly. Arrange the 1.5 lb Frozen Salmon Fillets on the trivet, ensuring they don’t overlap—this allows even heat distribution and cooking.

Sprinkle the fillets with 0.5 tsp Salt and 0.25 tsp Black Pepper. I like to season at this stage so the flavors penetrate the fish as it cooks. Close the lid and set the valve to sealing—this traps the steam for optimal results.

Step 2: Pressure Cook the Salmon

Select the High Pressure setting and set the timer for 4 minutes. I know it seems quick, but the pressure cooking method works wonders on frozen fish, locking in moisture and ensuring it cooks through without drying out. The Instant Pot will take about 10-12 minutes to come to pressure before the timer starts.

Once the cooking time is complete, perform a Quick Release by turning the valve to venting. You’ll hear a satisfying hiss as the pressure escapes—this is normal. Open the lid carefully once the pressure has fully released.

Step 3: Add Flavor with Aromatics and Glaze

While the salmon cooks, mince the 2 cloves Garlic Cloves and chop the 0.25 cup Fresh Dill. In a small bowl, whisk together the 1 tbsp Olive Oil, 1 tbsp Dijon Mustard, 1 tbsp Honey, 1 tbsp Lemon Juice, and the minced garlic. This glaze adds brightness and depth to the dish.

Once the salmon is cooked, use a spatula to transfer it to a serving platter. Drizzle the glaze evenly over the fillets. The salmon should flake easily with a fork and appear opaque throughout—this means it’s perfectly cooked.

Step 4: Finish with Butter and Garnish

For an extra touch of richness, add the 2 tbsp Butter to the Instant Pot with the remaining cooking liquid. Stir until the butter melts into the liquid, creating a silky sauce. Spoon this over the salmon for added flavor.

Garnish the dish with the chopped fresh dill and serve with slices of the 1 whole Lemon. The dill adds a fresh, herby note, while the lemon slices provide a zesty finish. Serve immediately and enjoy the flaky, moist texture that this method guarantees.

Troubleshooting This Recipe

Salmon Sticks to Trivet

If your fillets stick, you likely skipped the trivet or didn’t add enough 1 cup Water. Always place the trivet inside first, then add water. For extra insurance, I lightly grease my trivet with olive oil before adding the salmon. This creates a non-stick barrier. 💡

Undercooked Center

This happens when fillets are too thick or stacked. Use 1.5 lb fillets of even thickness, and never overlap them. If you’re unsure, check the thickest part with a fork—it should flake easily. If still translucent, reseal and cook for 1-2 more minutes.

Dry or Rubbery Texture

The most common mistake is overcooking. Stick to 4 minutes on High Pressure—no more. Also, use Quick Release immediately after cooking. Letting it sit longer continues cooking the salmon, which dries it out. I learned this the hard way with my first few attempts.

Weak or No Flavor

Seasoning frozen salmon requires a heavier hand. Don’t be shy with the 0.5 tsp Salt and 0.25 tsp Black Pepper. The glaze is also crucial—whisk the Dijon Mustard, honey, and lemon juice thoroughly. I always taste the glaze before drizzling to adjust seasoning.

Pressure Won’t Build

Check your seal and valve first. Ensure the silicone ring is properly seated and the valve is set to sealing. Also, verify you’ve added exactly 1 cup Water—too little prevents pressure buildup. My Instant Pot sometimes needs a gentle wiggle of the lid to engage the seal properly.

Strong Fish Odor

This is normal with frozen salmon but can be minimized. Add 1 tbsp Lemon Juice to the water before cooking. After cooking, wipe down the Instant Pot with a mixture of water and white vinegar. I always run an empty water cycle afterward to eliminate any lingering smells. 🌟

Frequently Asked Questions