Basa substitute

Best substitute

Swai or pangasius

Use the same amount by weight as the basa you are replacing

Best for any recipe calling for basa

Close match

Not really a substitute at all, because it is the same species. Basa, pangasius, river cobbler and swai are four market names for the same farmed Mekong catfish, so the fillet thickness, softness, mildness and cooking time are identical. If your recipe asks for basa and the freezer only has swai, buy it and change absolutely nothing about the method.

Other basa substitutes

Ranked, with the exact amount to use

2Tilapia
Different texture
Use the same amount by weight
The most useful genuine alternative and about the same price.
What changes
Basa's job in a recipe is to be inexpensive, boneless, mild protein that carries a curry, a batter or a sauce, and tilapia does that job with a firmer constitution. Because it is denser and less watery, tilapia browns properly in a pan, holds its shape in a simmering sauce and is far less likely to collapse, but it also tastes a shade less tender and a shade more mineral.
Best for
curries, pan-frying, baking, breaded fillets, fish tacos, traybakes
Tilapia fillets run slightly thicker, so allow an extra minute or two.
3Pollock or coley
Close match
Use the same amount by weight
The cheapest saltwater whitefish and a real improvement on flavor.
What changes
Pollock is lean with a clean, faintly briny taste and proper soft flakes, so a fish pie or a battered fillet made with it tastes fresher and lighter than the same thing made with basa, which leans slightly sweet and earthy. Pollock fillets are thicker, so add two to four minutes, and they are less prone to disintegrating in liquid.
Best for
fish and chips, fish pie, baked fish, chowder, fish fingers
Coley and saithe are the same fish and often cheaper still. Their greyer raw flesh whitens as it cooks.
4Cod or haddock
Close match
Use the same amount by weight
The proper upgrade, and the fish most basa recipes are quietly imitating.
What changes
Both give you large clean flakes and a bright marine flavor rather than basa's near-neutral softness, which transforms fish and chips, fish pie and chowder. Cod is firmer and holds together best; haddock is softer, sweeter and closer to basa in tenderness. Both cost meaningfully more and both are thicker, so extend the cooking time and check the center.
Best for
fish and chips, fish pie, baked fish, chowder, fish cakes
Because these fish actually taste of something, ease back on heavy seasoning you added to compensate for bland basa.
5Plaice, flounder or sole
Different texture
Use the same amount by weight
The best match for basa's thin, quick-cooking shape, and a big step up in quality.
What changes
These flatfish fillets are similarly slim but much finer-grained and genuinely sweet, so a pan-fry with butter and lemon is delicious rather than merely fine. They are also more fragile, cook in three or four minutes, and cannot survive a long simmer or a heavy beer batter without breaking up.
Best for
pan-frying, meuniere, rolled and baked fillets, grilled fillets
Turn them once with a thin fish spatula and stop as soon as the flesh turns opaque.
6Catfish
Taste and texture differ
Use the same amount by weight
Basa's closest relative among fish you can readily buy fresh, and the sturdiest option for frying.
What changes
Channel catfish has a firmer flake and a distinctly earthier, sweeter, more forward flavor, so a cornmeal-fried fillet tastes markedly more of fish. In a delicate cream or lemon sauce that extra character can be intrusive, so save it for fries, blackened preparations and stews.
Best for
deep frying, blackened fish, stews, grilling, curries
Fillets are thicker and need a longer cook. Farmed catfish is milder than wild-caught.

What is Basa?

Basa is Basa, sold interchangeably as pangasius, basa fillets, river cobbler or swai, is a cheap farmed Mekong catfish supplied as thin boneless white fillets with soft, faintly sweet, very mild flesh and a high water content.

Cooking tips

Basa is sold frozen with an ice glaze and it holds a lot of water, which is why it turns to mush more readily than any other white fish. Thaw it overnight in the fridge, then press it firmly between paper towels until the surface looks matte rather than wet.
Cook basa with high, dry heat: a hot pan, a 425F oven or a fryer. Gentle wet methods such as poaching or simmering in a thin broth break the fillet down into shreds. If a recipe wants poached fish, buy cod or pollock instead.
Salt basa ten to fifteen minutes before cooking and blot it again. The salt firms the surface protein slightly, which helps the fillet hold together and brown, and it seasons flesh that is otherwise almost flavorless.
Basa fillets taper sharply. Fold the thin tail under itself before baking, or trim it off and add it to the pan two minutes late, so the whole fillet finishes cooking at the same moment instead of drying out at one end.
Because basa contributes so little flavor of its own, it works best in dishes with a strong sauce: a coconut curry, a tomato and olive braise added at the last minute, a heavy beer batter, or blackening spice. Serving it plain with just butter and lemon exposes how mild it is.

Frequently asked questions

What fish is basa, and is it the same as swai?

Basa is a farmed freshwater catfish from the Mekong Delta, Pangasius bocourti and its close relatives. Swai, pangasius and river cobbler are all the same fish sold under different market names in different countries, so they are fully interchangeable. The fillets are boneless, thin, very pale and very mild.

Can I just leave the basa out?

Not really, because it is the protein the dish is built around. If you have no fish at all, thin-sliced chicken breast will carry most basa recipes since both are mild lean proteins that depend on their seasoning, and for a vegetarian version firm tofu or halloumi slabs work in a curry or a traybake. Either way you are cooking a different dish rather than substituting.

Is basa or cod better for fish and chips?

Cod, clearly, though basa is cheaper and perfectly serviceable. Cod's large firm flakes stay in one piece under the batter and taste cleanly of the sea; basa is softer, wetter and more likely to break when you lift the fillet from the fryer, and it tastes faintly sweet rather than briny. If you use basa, dry it hard and fry it hot.

Why does basa turn mushy?

Because of its high water content combined with cooking that is not hot enough. The fix is mechanical: full fridge thaw, blot dry, salt, blot again, then hot pan or hot oven, one turn only. If it still breaks apart, move to tilapia, pollock or catfish, all of which are structurally stronger fillets.

What is the best substitute for basa in a curry?

Tilapia, because it holds its shape in simmering sauce where basa dissolves. Add it in the last five to seven minutes, off a rolling boil, and stir as little as possible. Monkfish or firm cod loin cubes are better still if you want chunks that stay whole, and prawns are an easy alternative that need only three minutes.

Related substitutes

More seafood substitutes

Basa substitute

Other basa substitutes

2Tilapia

3Pollock or coley

4Cod or haddock

5Plaice, flounder or sole

6Catfish