This baked lingcod is cooked until tender and served with a tomato caper sauce. Prepare the sauce ahead of time for a quick and easy dinner!
This summer, we’ve been eating all the fish!
Really, it’s been the summer of fantastic fish here.
We signed up for a community supported fishery, and have been enjoying so much seafood!
Recently, we had the extra-special treat of enjoying some Alaska lingcod.
What Is Alaska Lingcod?
Alaska lingcod is a type of greenling, a bottom-dwelling fish.
And despite the name, it is neither a type of ling fish nor a type of cod.
It’s a mildly flavored white fish, with a dense consistency similar to halibut. Lingcod has a little more flavor than halibut, but it’s still pretty mild.
What If I Can’t Find Lingcod?
You can swap the fish in this recipe for halibut, cod, or any other dense white fish.
Looking for more white fish recipes? Try these: cod Reuben, spiced cod with sweet potato mash, cod pumpkin curry, cod with bourbon sauce, halibut salad with bourbon dressing, pan-seared halibut, and fish meunière (fish in butter sauce).
How to Make Tomato Caper Sauce
This tomato sauce can be made with both canned and fresh tomatoes, so you can make this dish year-round.
While the sauce doesn’t take a long time to cook, know that it can be prepared ahead of time, refrigerated, and then reheated when you’re ready to cook the fish.
Start by cooking a diced onion until it’s tender in heavy-bottom pan. I used a Lodge enameled cast-iron Dutch oven.
Add capers and diced garlic.
Cook until the garlic becomes fragrant (about a minute or two).
Next, add the tomatoes (either canned or freshly diced), salt, and herbs, and simmer over medium-low heat until the sauce thickens.
How to Cook Baked Lingcod
Place the lingcod in an oiled, oven-safe pan. I use a Lodge 12″ carbon steel skillet.
You could also use a sheet-pan or casserole dish instead.
Top the fish with slices of lemon.
Cover the pan with foil, and bake eight minutes per one-inch thickness.
The fish is done when it’s tender and easily pierced with a fork.
You’re not done cooking the fish: we’re going to broil it for just a moment to finish it off.
Remove the foil and the lemon slices.
Move an oven rack to the top of the oven (near the broiler), and slide the fish under the broiler for exactly one minute.
Serve the lingcod right away along with the tomato caper sauce and a side of freshly cooked pasta. Pair it with garlic cauliflower mash (or Instant Pot cauliflower mash) for a low-carb, gluten-free side.
This recipe was adapted from a halibut recipe in New York Times Cooking.
Baked Lingcod with Tomato Caper Sauce
Tomato Caper Sauce:
- 1 TB olive oil
- 1 onion, diced
- 2 garlic cloves, finely diced
- 1 TB capers
- 14 oz can diced tomatoes or 1 lb fresh tomatoes, cored + diced
- ½ tsp fresh thyme, removed from stems ¼ tsp dried thyme
- 1 TB olive oil
- 8 oz lingcod (2 fillets) Or swap halibut, cod, or another dense white fish
- ⅛ tsp sea salt
- ¼ lemon (4 thin slices)
Tomato Caper Sauce:
- Add oil to a heavy saucepan over medium heat. Add diced onions and cook 3-5 minutes, or until the onions are tender.Add garlic and capers. Cook 1-2 more minutes, or until garlic is fragrant.
- Add tomatoes, salt, and thyme. Lower heat to medium-low, and simmer for 15 minutes or until the sauce is thickened.Cover sauce to keep warm.Optionally, prepare the sauce up to 3-4 days ahead of time, and rewarm before serving.
- Preheat oven to 450°F.Brush an oven-safe pan with oil. Alternatively, use a baking sheet or casserole dish.Set the lingcod in the pan and sprinkle with salt. Cover the lingcod in lemon slices.
- Cover pan with foil, and bake 8 minutes per 1" thickness. The fish is done when tender and easily pierced by a fork.Note that thinner fillets of fish will cook more quickly, so take care to note the thickness of the fillets.
- Remove the foil and lemon slices.Move an oven rack 3"-4" from the oven broiler. Preheat the broiler to high.Slide the pan back into the oven, and broil exactly one minute.
- Serve the lingcod right away along with the tomato caper sauce.Any extra sauce can be used to top side dishes (such as rice, pasta, or cauliflower rice).