Photo of Instant Pot Salmon with Melted Leeks and Miso Butter by WW

Instant Pot Salmon with Melted Leeks and Miso Butter

Points® value
Total Time
25 min
15 min
10 min
When braised in an Instant Pot, oniony leeks turn sweet, tender, and translucent. (During prep, just be sure to rinse the raw slices thoroughly to remove all the grit.) Leeks are a perfect flavour complement for rich, flaky salmon fillets and a piquant finishing sauce of miso, butter, ginger, rice vinegar, and honey.


Cooking spray

4 spray(s)

Uncooked leek

3 large, white and light-green parts only, halved, sliced, and rinsed (about 3 cups)


½ cup(s)

Unsalted butter

1 tbsp(s), softened

Unsalted butter

2 tsp(s)

Table salt

1 tsp(s)

Uncooked farmed skinless salmon fillet

20 oz, 4 (5-oz) fillets, with or without skin

Ginger root

2 tsp(s), fresh, peeled, divided

Low sodium soy sauce

1½ tsp(s)

White miso

1½ tbsp(s)


1 tsp(s)

Unseasoned rice vinegar

1 tsp(s)


2 medium, thinly sliced


  1. In a 6-quart Instant Pot, combine the leeks, 2 tsp of the butter, the salt, and 1⁄2 cup water. Set a rack on top of the leeks and coat with cooking spray. Arrange the fish, skin-side down, on the rack. Rub the fish with 1 tsp of the ginger and brush with the soy sauce.
  2. Lock the lid, making sure the vent is closed. Select Steam and set the cooking time for 4 minutes. When the time is up, press Cancel to turn off the pot. Move the steam release handle to the venting position to release the pressure. Remove the lid.
  3. Meanwhile, in a small bowl, stir the miso, honey, vinegar, and the remaining 1 tbsp butter and 1 tsp ginger until smooth.
  4. Carefully remove the rack with the fish from the pot. Spread the miso butter over the fish. Cover to keep warm.
  5. Press Sauté and set the cooking time for 10 minutes. When the leeks start to sizzle, cook until the leeks are very tender and most of the liquid in the pot has evaporated, about 5 minutes, stirring occasionally. Press Cancel to turn off the pot. Divide the leeks among 4 plates and top with the fish. Garnish with the scallions.
  6. Serving size: 1 piece salmon, 1/3 cup leeks, and scant 1 tablespoon miso butter