Cod has an unfair reputation as a sad fish. Served without a sauce or a decent side, it can indeed disappoint — but that’s a recipe problem, not a fish problem. Here, we give it what it needs: a golden crust, curry-scented pasta, and a lemon butter sauce that transforms the plate into something you’ll want to finish to the last bite.
What strikes you first is the contrast of colors: the pearly white of the cod against the warm yellow of the curry small shells, with that ribbon of shiny sauce catching the light. As you bring the plate closer, the smell of zaatar rises — slightly herbal, a bit earthy — mingled with the tangy scent of hot lemon. The pasta is tender, almost creamy under the sauce, and the fish crackles slightly under the fork before flaking into large, melting pieces. It’s visually simple, but it’s a plate with character.
Why you’ll love this recipe
Ingredient Notes
The essentials for two: cod fillets, Lustucru curry small shells, salted butter, a lemon, and zaatar for the sauce.
- Cod fillets : Cod is a firm-fleshed fish that holds up well in a hot pan — unlike pollock or whiting that flake easily. Choose fillets of even thickness (about 3 cm) for even cooking. If you can’t find any, cod loin is ideal: thicker, it stays tender in the center even if you sear it hard.
- Lustucru Curry Small Shells : The particularity of these pasta is that the curry is integrated into the dough itself — not sprinkled on top. During cooking, it releases a warm, slightly spicy aroma in the steam. If you can’t find this brand, cook regular small shells and add half a teaspoon of mild curry powder to the cooking water, or stir it into the drained pasta with a drizzle of olive oil.
- Salted butter : Salted butter is intentional here, not by default. It adds subtle saltiness to the sauce without needing heavy seasoning. The secret to a successful lemon butter sauce is that the butter is cold when you add it — you need a temperature difference for the sauce to emulsify and become creamy rather than breaking into a greasy pool.
- Lemon : Lemon juice is the acidic backbone of the sauce. Use freshly squeezed lemon — never bottled juice, which has a metallic taste particularly noticeable in such a simple sauce. If your lemon is not very juicy, microwave it for 10 seconds before squeezing: it releases the juice more easily.
- Cornstarch : Cornstarch plays a stabilizing role in the sauce: it slightly thickens the lemon juice and gives some body to the liquid before you mount the butter. Without it, the sauce remains too thin and doesn’t coat the fish well. One teaspoon is enough — too much, and you get a gluey texture rather than silky.
- Zaatar : This blend of dried herbs (thyme, oregano, sesame, sumac depending on origin) adds a slightly tangy and herbal note that contrasts with the fat of the butter. Add it off the heat to preserve its volatile aromas — heat would destroy them quickly. If you don’t have any, a pinch of dried thyme and toasted sesame gives a similar result.
Dry the fish well before putting it in the pan
This is the step many skip, and it makes all the difference. Pat the cod fillets dry with paper towels on both sides — if the surface is moist, the pan will spit, steam will prevent caramelization, and you’ll end up with steamed fish rather than seared. Heat a pan over high heat with a drizzle of olive oil until it just starts to smoke. Place the fillets skin-side down if you have skin, or smooth-side down first. Don’t touch for 3 minutes: the fish will first stick, then release on its own when the crust is formed. You’ll hear a pronounced sizzle that fades over time — that’s the sign that the surface is drying and browning. Flip once, and finish for 2 minutes on the other side. The inside should remain slightly pearly, not opaque white all through.
Cook the pasta al dente, not mushy
Cook the curry small shells in a large pot of salted boiling water according to package instructions — usually 8 to 10 minutes. Al dente texture is important here: these pasta will receive the lemon butter sauce and the moisture from the fish, and they’ll continue to swell slightly on the plate. If you cook them fully, they’ll be mushy before even serving. Drain without rinsing — the surface starch helps the sauce cling. A drizzle of olive oil mixed in quickly after draining prevents sticking during plating.
Mount the sauce at the last moment, off the heat
The lemon butter sauce is prepared alongside the pasta, but it doesn’t keep — you must serve it immediately. In a small saucepan, pour the lemon juice and three tablespoons of water. Heat over medium heat for one minute. In a separate bowl, dissolve the cornstarch in the remaining tablespoon of water until smooth, then pour it into the pan while whisking. The sauce will slightly thicken in seconds — it looks like milk getting heavier. Remove from heat. This is when you add the cold butter cut into small cubes, one by one if possible, whisking constantly. The sauce becomes opaque, shiny, and coats the whisk. Season with salt, pepper, and add the zaatar. If you make it too early and it cools, it solidifies — impossible to recover properly without reheating and risking breakage.
Plate quickly, serve immediately
Plating this dish is naturally fast — that’s one of its strengths. Place the curry small shells in the center, lay the cod fillet on top, a few lamb’s lettuce leaves on the side for fresh crunch and green, then pour the sauce at serving time. Don’t drown it: two generous spoonfuls are enough; the rest can be served on the side. The smell of warm zaatar on the cool-warm sauce rises immediately. Eat while the fish is still hot in the center — cooled cod quickly loses its tender texture.
Tips & Tricks
- Take the cod out of the refrigerator 15 minutes before cooking. Fish that is too cold hitting a hot pan creates thermal shock that shrinks and hardens the surface before searing — the inside stays raw while the outside burns.
- Never whisk butter over heat. The lemon butter sauce is built on a fragile emulsion between the butterfat and the acidic liquid. As soon as the temperature exceeds about 60°C, the emulsion breaks and you get a greasy yellow pool with lumps of butter solids — unrecoverable. Off the heat, the whisk does all the work.
- Taste the pasta before draining rather than relying solely on the timer. Cooking times vary by brand and cooking altitude. The ideal texture here: slight resistance to the bite, without a hard center.
- Add the zaatar off the heat in the sauce, not during cooking. The aromatic oils of zaatar — responsible for its herbal and slightly tangy scent — are volatile: five minutes of heat and they disappear, leaving only a dull earthy background.
Can I replace the cod with another white fish?
Yes, pollock or hake work very well in this recipe. Avoid very thin fish like tilapia or sole — they tend to fall apart in the pan before browning. The key is to choose a fillet of even thickness for even cooking.
How can I tell if my lemon butter sauce turned out right?
A successful sauce is shiny, smooth, and coats the back of a spoon without running off immediately. If it looks greasy and separated into layers, it was heated too much and the emulsion broke. In that case, there’s not much to do — better to start over with cold butter and a pan removed from the heat.
Are Lustucru Curry Small Shells indispensable?
No, but they really simplify the spicing. If you can’t find them, cook regular small shells and stir in half a teaspoon of mild curry powder with a drizzle of olive oil right after draining. The result is very close, just slightly less depth in the flavor.
Can this dish be prepared in advance?
Not really. Cod dries out quickly once seared, pasta absorbs moisture within minutes, and the lemon butter sauce solidifies as it cools. It’s a recipe designed to be served immediately, which is why the cooking times are short. If you want to save time, prep the ingredients ahead and cook at the last moment.
What is zaatar and where can I find it?
Zaatar is a Middle Eastern spice blend typically made of dried thyme, oregano, sesame, and sumac. It has an herbal taste with a slight acidity at the end. You can find it in Middle Eastern grocery stores, some supermarkets in the spice aisle, or online. If you don’t have any, a pinch of dried thyme and toasted sesame gives an approximate result.
Is lamb’s lettuce really necessary in this dish?
It plays a more important role than it seems: it adds fresh crunch that contrasts with the fat from the butter sauce and the warmth of the curry. Without it, the plate feels a bit heavy. If you don’t like lamb’s lettuce, fresh spinach leaves or a few rocket leaves fulfill exactly the same role.
Cod with Curry Small Shells and Lemon Butter Sauce
French
Main course
A pan-seared cod fillet, set on curry-scented small shells and drizzled with a lemon butter sauce with zaatar. Simple in its construction, precise in its steps — a weekday dish that has the presence of a Sunday meal.
Ingredients
- 2 cod fillets (about 300g total)
- 200g Lustucru curry small shells
- 2 handfuls lamb’s lettuce
- 1 drizzle olive oil
- 80g cold salted butter, cut into small cubes
- 1 lemon (freshly squeezed juice)
- 4 tbsp water (divided)
- 1 tsp cornstarch
- 1 pinch zaatar
- Salt and black pepper from the mill
Instructions
- 1Take the cod fillets out of the refrigerator 15 minutes before cooking. Pat them dry thoroughly with paper towels on both sides.
- 2Bring a large pot of salted water to a boil. Cook the curry small shells according to package instructions, removing them al dente (about 1 minute before the indicated time). Drain without rinsing and toss with a drizzle of olive oil.
- 3Heat a pan over high heat with a drizzle of olive oil until just smoking. Place the cod fillets in and sear for 3 minutes without moving, until a golden crust forms. Flip and cook for another 2 minutes. Set aside off the heat.
- 4In a small saucepan, pour the lemon juice and 3 tablespoons of water. Heat over medium heat for 1 minute.
- 5In a bowl, dissolve the cornstarch in the remaining tablespoon of water until smooth. Pour into the pan while whisking, and let thicken slightly for 30 seconds.
- 6Remove the pan from the heat. Incorporate the cold butter cube by cube, whisking constantly, until the sauce is shiny and coats the whisk. Season with salt, pepper, and zaatar.
- 7Plate: place the small shells, lay the cod fillet on top, add a few lamb’s lettuce leaves on the side, and drizzle with lemon butter sauce. Serve immediately.
Notes
• The butter must absolutely be incorporated off the heat and well chilled — that’s the condition for the sauce to emulsify properly rather than greasing.
• For a more tangy note, add a few lemon zest strips to the sauce along with the zaatar.
• Cod does not reheat well — the flesh becomes cottony. Prepare only the amount to serve.
• If you can’t find curry small shells, substitute with regular small shells with ½ tsp mild curry powder stirred in after draining.
Nutrition Facts (per serving, estimated)
| 820 kcalCalories | 38gProtein | 68gCarbs | 41gFat |
