Skip to main content

Cod With Soy-Caramelized Onions and Potatoes

A cod fillet set on top of caramelized sliced potatoes sprinkled with green onions and chile flakes.
Photo by Emma Fishman, Plate by Meilen Ceramics 

Adding ginger and soy sauce to caramelized onions gives a bit of zingy punch and intrigue, creating a multidimensional meal that comes together in just one skillet. Covering the onions briefly during the beginning of the cooking process helps them break down more quickly—a baking sheet will work if you don’t have a lid!

Recipe information

  • Yield

    2 servings

Ingredients

3 Tbsp. extra-virgin olive oil, divided
2 medium onions, thinly sliced
Kosher salt
1 1" piece ginger, peeled, sliced into matchsticks or finely chopped
2 tsp. soy sauce
1 medium russet potato, scrubbed, sliced into ¼"-thick rounds
2 5–6-oz. cod, pollock, halibut, or other flaky white fish or salmon fillets
2 scallions, trimmed, thinly sliced
Furikake, shichimi togarashi, sesame seeds, mild red pepper flakes, or other fun sprinkly topping (for serving; optional)

Preparation

  1. Step 1

    Heat 2 Tbsp. oil in a large skillet over medium. Add onions, season with salt, and cover. Cook, uncovering and stirring occasionally, until onions are softened and just beginning to take on color, about 5 minutes. Uncover, add ginger, and cook, stirring occasionally, until onions are jammy and golden brown, 10–12 minutes. Stir in soy sauce. Transfer onion mixture to a plate and wipe out skillet.

    Step 2

    Pour remaining 1 Tbsp. oil into same skillet and increase heat to medium-high. Add potatoes in a single layer and season with salt. Cook, turning halfway through, until golden brown, 10–12 minutes.

    Step 3

    Spread onion mixture over potatoes, leaving a 1" border of potatoes without onion mixture. Season fish with salt and place on top of onion mixture. Cover and reduce heat to medium-low. Cook until fish is opaque throughout and easily flakes apart, 10–12 minutes. Serve topped with scallions and furikake (if using).

Read More
A flurry of fresh tarragon makes this speedy weeknight dish of seared cod and luscious, sun-colored pan sauce feel restaurant worthy.
Roasted radishes for the win.
Saucy, soy-honey salmon—cut into cubes to speed up the cooking process—makes a savory topping for a quick weeknight bowl.
This brothy bowl will nourish you from the inside out.
A savory-hot salsa made with mixed nuts (like the kind dubbed cocktail nuts meant for snacking) gives roast salmon a kaleidoscope of textures and flavors.
This broiled hot honey salmon recipe results in sweet, spicy, glossy fish coated in a homemade hot honey glaze for an easy weeknight dinner or make-ahead lunch.
This quick-cooking dish that will disappear as fast as it comes together.
You’ll want to put this creamy (but dairy-free) green sauce on everything and it’s particularly sublime under crispy-skinned salmon.