BBQ Swordfish – A simple, light, fresh and healthy alternative barbecue recipe (gluten free; dairy free)
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BBQ swordfish – simple & ‘sophisticated’
What do you barbeque when the weather heats up? We like to make BBQ swordfish. Sure we eat burgers, sausages, chicken, Halloumi skewers and marinated vegetables too. But for something a little different, BBQ swordfish drizzled with tangy lime and topped with prawns, pistachio and a little fresh coriander hits an altogether more ‘sophisticated’ and adventurous spot.
Living by the sea and with a working harbour, we are lucky enough to have an amazing fish market on our doorstep. Although a little more expensive, we try to make the most of it.
I say ‘sophisticated’… but in reality, this dish is as simple to cook as it is light, fresh, colourful, delicious and healthy. And swordfish cooked with lime, pistachio and coriander has to be one of my all-time favourite flavour combos. We often make a pan-based version, that we eat with salads, roasted vegetables, new or Hasselback potatoes.
So, if you have never tried making BBQ Swordfish, then why not give it a go?




How we BBQ at GFHQ
With summer’s getting apparently warmer, the opportunity to barbecue in the UK may well be increasing. And if you have a garden or space where you can cook outside, you may already have a barbeque. At GFHQ, we do have a larger barbeque that we use for entertaining, but we also have a Cobb BBQ, which may just be the best piece of outdoor equipment we have ever bought.
Seriously… If you have never seen one and love being outdoors, you have to check it out. The full range is on the Cobb website, but you can also get them on the high street in Lakeland, and at Amazon as well. And no… I haven’t been paid, or even asked to rave about the Cobb. It’s just genuinely amazing… Whether you choose to cook BBQ swordfish or anything else.
Why we love the Cobb BBQ
What makes the Cobb BBQ so fantastic, is that it’s small and easily transportable (packing neatly into a carry bag). So, it’s perfect for taking to the beach, park, on holiday or anywhere else. And that also makes it perfect for spontaneous BBQ trips AND for people who don’t have the benefit of a garden or their own outdoor space.
Aside from being very powerful and quick to heat (the ‘Cobblestones’ are hot and ready to cook within minutes and stay hot for a couple of hours), the external frame is reassuringly cold to touch. And… being compact in size, it can be placed in the centre of the garden table to cook communally. It is a genius piece of equipment.




What is Swordfish?
Swordfish is a white fish with a meaty, firm texture, mild in flavour and popular in the Mediterranean. It is usually sold as ‘swordfish steaks’ about an inch thick. Like all fish, it is a fantastic source of protein, but is also low in calories and rich in Vitamin B12, Vitamin D, zinc and healthy fish oils.
How to BBQ Swordfish
The firm, robust texture of swordfish makes it perfect for the BBQ. It will cook over hot coals in no time at all and because it is mild in flavour, is the perfect base for marinades and flavourings. But… keep a watchful eye. Cooked well, swordfish should be moist and succulent. Over-cooked, it will be dry and unappetising.
So, is there a trick to perfect BBQ swordfish? Well, not really… But as a rule of thumb and with a swordfish steak about an inch thick, brush with a little oil and sear hot and fast on one side for about 5 minutes until golden… Flip… Cook the other side for about another 5 minutes… If the edges are still looking uncooked, then use tongs to carefully rotate the sides over the heat. “Doneness’ comes with experience it would seem. Although for a more considered discussion of how to grill swordfish, I found this helpful post over at Serious Eats.
If you are making BBQ swordfish with lime, brush the raw fish (both sides) with a little olive oil, season with salt and pepper and a drizzle of lime juice. Keep the lime juice handy and add some more over the top as grilling progresses.




Can I still make this recipe if I don’t have a barbecue?
Yes… you can! The same recipe can be made using a griddle pan or if you don’t have one, a heavy-based frying pan. Flash-fry the accompanying prawns in the pan alongside and follow the other instructions as they are.
What does BBQ swordfish with lime, pistachio and coriander taste like?
Cooked to perfection, the BBQ swordfish should be moist and tender. Its white flesh will be delicately touched by a lime-citrus tang and the unmistakable flavour and aroma of fresh coriander. The softness of the fish is paired deliciously both for texture and taste with the earthy, slightly sweet crunch of toasted, crushed pistachio nuts. And the succulent, slightly chewy prawns are the icing on the top.
Tempted? You may never look back.
Of course, any good summer evening needs the company of a cooling drink. A little Prosecco… a glass of rosé… Or perhaps a chilled gluten free beer? With so many new gluten free beers coming to market, it seems we are finally being spoiled for choice.
This particular BBQ was accompanied by a great local Kent discovery… A gluten free craft beer from the Westerham Brewery in Kent, beautifully named ‘Bohemian Rhapsody’… Slightly floral, but moreishly refreshing.




More BBQ inspiration
If BBQ swordfish doesn’t tempt you, there is plenty more #freefromBBQ inspiration to be had. I’ve offered a few links below that may just entice you out into the garden. But please remember… If the barbecue is shared with gluten or other allergy-containing foods, make absolutely sure you take precautions against cross-contamination. Cook food more safely on clean foil and ensure foods don’t touch.
- BBQ Halloumi Skewers with Sweet Summer Veg – Gluten Free Alchemist
- BBQ Marinated Veg – Gluten Free Alchemist
- Chorizo & Cod Kebabs – Le Coin De Mel
- Veggie Burgers – Free From Fairy
- Easy No Mayo Coleslaw – Easy Peasy Foodie
- Pina Colada BBQ Pineapple – Gluten Free Alchemist
- Best Corn on the Cob – Gluten Free Alchemist
For everything else and more, head over to our gluten free Recipe Index.








BBQ Swordfish with Lime, Pistachio & Coriander
Key equipment
- Oven
- sharp knife
- barbecue
- skewers
- barbecue tongs
- serving plate
Ingredients
- large handful shelled pistachio nuts raw and unsalted
- 4 swordfish steaks
- 1 tbsp olive oil
- salt & fresh ground black pepper
- 1 lime juice only
- 4 tbsp coriander (fresh and chopped)
- 1 lime (additional) cut into half-moons
- 165 g peeled king prawns chilled or defrosted
Instructions
Toast and chop pistachio nuts
- Pre-prepare your pistachio nuts by toasting on a baking tray in a hot oven (200 C/400 F/Gas 6) for about 10 minutes, turning intermittently to prevent burning.
- Cool the nuts and rough-crush in a pestle and mortar or rough-chop with a sharp knife. Set aside.
BBQ the prawns and fish
- Push the prawns onto skewers so that they are easy to BBQ.
- Brush the raw swordfish steaks with a little olive oil (both sides).
- Season the fish with salt and pepper and drizzle with a little lime juice.
- Place the fish onto the grill of a hot barbecue and cook for about 5 minutes on each side to seal and cook until tender. Drizzle a little more lime juice on each side during the cooking process.
- While the fish is cooking, place the skewered prawns to cook alongside, turning until pink, but still tender.
- Once cooked, transfer the swordfish steaks to a serving plate and drizzle with a little more lime juice.
- Top with the cooked prawns.
- Sprinkle with the crushed pistachio nuts and chopped coriander and a little extra black pepper.
- Garnish with the lime half-moons and serve.
Notes
Nutrition
© 2019-2023 Kate Dowse All Rights Reserved – Do not copy or re-publish this recipe or any part of this recipe on any other blog, on social media or in a publication without the express permission of Gluten Free Alchemist
Oh my goodness, this is so my kind of meal, would love this. Although I've never tried swordfish but it's on my list to try! #recipeoftheweek
Thanks Hayley. I love this dish and we all love swordfish here. Definitely worth a try if you haven't had it before xx
This sounds delicious. I've never cooked swordfish before and I'm never very confident with fish. My parents don't at meat so they would love this on the BBQ. #freefromfridays
Thanks Emma. I imagine you would be fab at cooking swordfish (as you are fab at cooking everything else)….. so confidence or not, I reckon you should give it a go xx
Oh that is my kind of dish! Beautiful combinations with the pistachios and lime.. just really delicious!
Thanks Alida…. I am certain you would enjoy this one! x
Oh wow, I love this, and with that BBQ I might be encouraged to cook outside a lot lot more. It sounds amazing…as does your new extension and outdoor area. I've never cooked swordfish but this looks utterly delicious xx
Thanks Vicki. We are really pleased with the additions made to the house and the Cobb BBQ is a fantastic piece of equipment (comes into its own dow the beach as well!).
Swordfish is a must and perfect for BBQ as it has a strong structure. Miss GF loves it! x
Oh wow, Kate – this looks so pretty and I can just imagine how good it must taste! We used to do a lot of fish on the BBQ, but haven't for yonks – your recipe and Rebecca's have inspired me to get back into it! Eb x
Thanks Eb. Fish on the BBQ is definitely my favourite of BBQ foods….. And so quick too! Hopefully we will have plenty more warm evenings for you to get back to it. xx
Yum yum YUM!! I have never tried swordfish before but now I want to. Fish + citrus is a winner for me, and love the idea of pistachios as well!!
Thanks Sarah. Never tried Swordfish? You MUST!!!!! x
What a gorgeous recipe Kate! I love any seafood from BBQ and swordfish being nice, chunky fish is simply perfect for it! I love the addition of pistachios for a bit of crunch. PERFECT! Oh and I hope the heat wave comes back as I love it as much as you do! 🙂 x
Thank you Jo. I love a bit of crunch against soft fish….. The pistachios are a great combo against lime too.
As for the sun….. I'm out there doing a dance every night, willing it to return! xx
Wow this looks amazing, I'm not usually a lover of fish but this looks so appetising I'm going to give it a go #brilliantblogs@_karendennis
Thanks Karen so much for your lovely comment. This dish is so simple, but we love it here. I hope you enjoy it as much. Let me know how you get on xx
Love it Kate, I adore swordfish and woud much rather have this over meat any day of the week. The flavour combo' here are excellent, going to be popping to the fishmongers to recreate this one for sure xxx
Thanks Rebecca. Having seen your Trout, I KNOW you'll love this xx
Fish cooked on the bbq tastes fantastic on its own, but with a little lime juice and crunchy pistachios scattered on top it makes for a truly sensational dish. Love your recipe! Let's hope the hot weather comes back soon:) Thank you for sharing with #CookBlogShare:)
Thanks Monika. You're welcome. I much prefer fish BBQs. And yes….. Long may the hot weather last! x