What to do with swordfish

Swordfish are dense and meaty, with a slightly sweet taste and a high oil content. Like tuna (also dense and meaty with a high oil content) they can also be dry.

One major advantage of swordfish steaks is that they are simple and easy to cook – there is no skilled filleting or patient deboning required. They just need a few minutes frying each side on a griddle…. or even better over a barbecue.

Care needs to be taken, though, to get the cooking balance right. Too much cooking and it really does go dry and saw-dusty. If you take it off the heat while still just pink in the middle, by the time you serve it, it should be cooked through. But if it isn’t cooked through it is very chewy.

Care also needs to be taken when marinading. If you marinade for too long, especially if the marinade is acid-heavy, the flesh will start to break down and become mushy.  

The flavour of the fish can be easily overwhelmed, so this method uses rosemary which lends a lovely smokey-herb flavour to the dish; lime, which brings out the taste; and a very lighly curried mayo sauce which counteracts any dryness.

Swordfish steaks go well with jacket potatoes; or with roast new potatoes to mop up any mayonnaisy juices. And a crisp, green salad adds a bit of texture interest. An avocado and mango salad also goes well.

About swordfish

Swordfish (Xiphias Gladius) are large, long (about 3m) and fast, with a long, thin, rapier-like bill (hence the name). Like tuna, and some sharks, they have a heating mechanism which heats their eyes and brains well above the surrounding water temperature. This gives improved vision and renders them all the better to pick out their prey. If the prey is large enough to merit it, the swordfish slashes with its long bill in order to weaken it.

If you find a swordfish with slightly pinkish flesh that will be because it has been gorging (probably on the east coast of north America) on a diet of shrimp… often these fish are more expensive.

Swordfish stock is broadly sustainable, for more information on this go to The Marine Conservation Society website.

how to cook swordfish
1.	Zest the lime. Cut it in half and add a squeeze or two to the mayonnaise.  2.	Coat the swordfish steaks in olive oil and put them on a board. Squeeze over the rest of the juice from the half lime you have just spritzed into the mayo.  3.	Grind over some pepper and leave for about twenty minutes.  4.	Meanwhile add the tomato paste, curry powder and some more black pepper to the mayo. Mix in well.  5.	Peel and crush the garlic with the salt, if you haven’t already done this. Add the zest to it, and a little oil to make a paste.  6.	Oil a griddle pan generously, and get it hot. Add the rosemary. Add the swordfish steaks and fry for about four minutes (it slightly depends on the thickness of the steaks and the temperature of the hob). Turn, and fry for another couple of minutes.  7.	Spread the garlic-zest paste over the steaks. You can either serve as is (together with the rosemary and the mayo), or if you prefer you can lower the heat, flip again to lightly fry the garlic (you may need a bit more oil) and take the pan off the heat. Plate up the swordfish steaks with the rosemary and whatever else – roasted new potatoes go well, and a green salad). When the garlic has cooled a little, add it to the mayo and serve with the rest.
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