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No. 29FrenchSeafoodPasta

Lobster Bisque Linguine

an awesome base to make a kick-ass restaurant quality style meal without the hours involved in making a bisque

John Drummond

A wide cream bowl of linguine in a glossy salmon-coral lobster bisque sauce, topped with seared king prawns, flakes of white blue swimmer crab, chives and lemon zest, with a glass of white wine, half a lemon and a linen napkin on a dark stone benchtop
Prep10min
Cook35min
All up45min
Serves2
LevelMedium

Mise en place

What you need

Tick each one off as it goes in.

The seafood

The reduction

The sauce

The pasta and finish

Makes 2 serves

I've got a 300 g tin of Liebig Lobster Bisque, and I reckon it's an awesome base to make a kick-ass restaurant-quality meal without the hours involved in making a bisque. I had a recipe for it that was probably pretty good on its own. But let's see where we can push it.

It went through the full AI competition: Claude, Grok, Codex and Gemini, four rounds, blind, with that recipe as the starting point. They kept almost all of it. The tin, the wine, the cognac, the 45 ml of cream and the butter all stay. What changed is small. The prawn shells get roasted hard until the pan's got a brown crust, not just sweated, because that roasted shell is the fresh shellfish flavour a tin can't have. The reduction is measured to exactly 90 ml, so it comes out the same every time. And the pan the prawns were seared in gets a splash of that reduction, scraped into the sauce, so nothing's wasted. Their predictions land around 9 out of 10. It hasn't been cooked in this exact form yet.

The prawns matter. Get raw, head-on Spencer Gulf king prawns from a fishmonger: the heads are where the flavour is. Raw head-on frozen ones, properly thawed, are fine. Cooked deli prawns won't work.

Don't salt the sauce. The tin's already seasoned, and it's got a little chilli in it, so don't add more until you've tasted it.

The step photos are generated, set in a kitchen like mine.

Some stuff about it that's actually true. We checked.

Bisque didn't start out as a seafood soup. In 17th-century France it was a luxury soup of pigeon and chicken, "served only at the tables of great lords". The fish versions came later.

Nobody really knows where the word comes from. It might be the Bay of Biscay. It might be "twice cooked". Both are guesses.

Liebig was a real person, Justus von Liebig, the German chemist behind the 19th-century meat extract. The name stuck. The lobster bisque is a much later French product. The tin is 24% shellfish, and the lobster part works out to the equivalent of 12% lobster. The rest of the shellfish is langoustine and crab.

And blue swimmer crabs really do swim: their back legs are paddles. When they're resting, they bury themselves in the sand with only their eyes and antennae poking out.

AI reviewed by Grok, Codex & Claude

The method

Nine moves.

  1. Prawns, Prep

    Peel and devein the prawns. Keep every head and shell. Pat the meat bone dry and into the fridge. Pick through the crab for shell, blot it, leave it in big flakes. You want dry, translucent prawns and a separate pile of heads and shells.

    Peeled raw king prawns on a white plate, a bowl of prawn heads and shells, a small bowl of picked crab, a French shallot and a garlic clove on a timber board, on a charcoal benchtop beside a black glass gas cooktop

  2. Shells, Roast

    Widest heavy pan you've got, 5 ml oil, medium-high to high. Dry heads and shells in, one loose layer: two batches if they pile up. 5–6 minutes, turning. In the last minute, press the heads to squeeze out the juices. Ready when the shells are deep coral and there's a patchy hazelnut-brown crust on the pan. Pale shells sitting in liquid are steaming. Black is burnt.

    Prawn heads and shells roasted coral-orange in a stainless saucepan on the wok burner of a black glass gas cooktop, a brick-red crust on the pan

  3. Reduction, Measure

    Pan off the flame. Cognac in. Back on, boil almost dry, 30–45 seconds. No flambé. Wine in, scrape the crust, reduce until the raw alcohol smell's gone, 2–3 minutes. Water in, simmer hard 5–6 minutes. Strain through a fine sieve, pressing gently. Measure it: boil it down or add a splash of water to get exactly 90 ml. Taste it. Clean, roasted and concentrated, not bitter. Copper-orange, no grey foam, no grit.

    A sieve of spent roasted prawn shells over a glass jug holding copper-red shellfish reduction, the empty saucepan beside it, on a charcoal benchtop

  4. Sauce, Build

    Second pan, 10 g butter, medium-low. Shallot, 2–3 minutes, no colour. Garlic, 30 seconds. Bisque, 70 ml of the reduction and the cream. Warm 2–3 minutes until it steams. Don't boil it hard. Don't salt it. Keep the last 20 ml of reduction. It should be salmon-coral and just coat a spoon, not beige, not thick like pudding.

    A smooth salmon-coral lobster bisque sauce steaming in a stainless sauté pan, a wooden spoon resting on the rim, on a black glass gas cooktop

  5. Pasta, Prawns, Cook

    Linguine into 2 litres of boiling water with the 8 g salt. Stir it in the first two minutes. Pull it 2 minutes before the packet's al dente. Keep a mug of pasta water. Meanwhile, the last 5 ml oil in a hot pan. Prawns in, not crowded, 45–60 seconds on the first side, 20–45 on the second.

    Out the moment there's a little gold and the thickest one's pearly white right through. Cut one if you're not sure. Relaxed C shape, not tight curls. They never go back in the sauce.

    Eight king prawns seared golden in a black cast-iron skillet on a black glass gas cooktop

  6. Prawn Pan, Deglaze

    If the bottom of the prawn pan is golden, not burnt, add 10 ml of the reduction, scrape it for 10 seconds and tip it into the sauce. Keep the last 10 ml.

  7. Linguine, Finish

    Linguine into the steaming sauce with 20 ml pasta water. Toss on medium-low, 60–90 seconds. Needs more? The last 10 ml of reduction first, then pasta water 10 ml at a time. Stop while it's a touch looser than you want on the plate. Every strand coated, a little glossy pool that runs back when you tilt the pan.

    Linguine tossed in glossy salmon-coral bisque sauce in a stainless sauté pan with tongs resting on the rim

  8. Butter, Crab, Fold

    Pan right off the heat. 30 g cold butter in three goes, tossing. Crab in, fold 20–30 seconds, just to warm it. Most of the zest, 5 ml lemon juice, chives, tarragon if you're using it. Taste. Then more lemon, a pinch of chilli or pepper only if it needs it. No salt unless it truly does.

    Glossy coral linguine off the heat with cubes of cold butter melting into it and flakes of crab folded through, half a lemon and a small bowl of chives beside the pan

  9. Plate, Up

    Warm shallow bowls. A tall twirl of linguine, the prawns on top, crab where you can see it, the rest of the sauce around. Chives, the last of the zest, a few drops of olive oil. Eat it straight away. For four, double everything and use the whole tin. Do the shells and prawns in batches. It'll take closer to 50 minutes.

    A white bowl of linguine in coral bisque sauce topped with seared king prawns, crab, chives and lemon zest on a charcoal benchtop, a second bowl behind

If it goes wrong

How to save it

The reduction tastes bitter
The shells or the crust burnt. Can't be fixed. Use less of it, or start the shells again on lower heat.
The prawns are tight and rubbery
Overcooked. Can't be undone. Next time pull them the moment the centre turns pearly.
The sauce has gone thick and pasty
Too long on the heat with the pasta. Off the heat, a splash of reduction or pasta water, toss.
The sauce is too salty
The tin's salty and the pasta water was too. Unsalted water or more cream, a squeeze of lemon. Less salt in the pasta water next time.
The butter's split and it looks greasy
The pan was too hot. Off the heat, a spoon of pasta water, toss hard.
The crab's shredded and disappeared
It went in too early or got stirred hard. Fold it in last, off the heat.

Keep wandering

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Lobster Bisque Linguineserves 2 · 45 min