Swordfish with Olives and Capers
Swordfish with Olives and Capers
Swordfish or cod steaks simmered in a buttery plum tomato sauce, finished with chopped olives and capers.
Prep: 10 minutes · Cook: 20 minutes

What Is Swordfish with Olives and Capers?
A simple Mediterranean fish dish where swordfish or cod steaks poach gently in a buttery plum tomato base, with chopped black olives and capers stirred in at the very end.
Why Make Swordfish with Olives and Capers?
- One shallow pan, 30 minutes
- Butter gives the tomato sauce unexpected silkiness
- Olives and capers stay bright, added last
- Works equally with swordfish or cod
- Weeknight-easy with company manners
Unico Products Used in This Recipe
Ingredients
- 1 sprig parsley (finely chopped with the onion)
- 1 onion
- 55 g butter (2 oz)
- 1 clove garlic (lightly crushed)
- 398 mL plum tomatoes (canned, drained, deseeded and roughly chopped (14 oz))
- salt and pepper (to taste)
- 4 swordfish or cod steaks
- 1 tbsp pitted black olives (chopped)
- 1 tbsp capers (drained)
Instructions
- Finely chop the parsley together with the onion.
- Melt the butter in a large shallow pan; add the crushed garlic and the parsley-onion mixture and cook over medium heat until lightly browned.
- Add the chopped tomatoes and season with salt and pepper.
- Add the fish steaks, reduce the heat, and cook about 15 minutes, stirring from time to time.
- When the steaks are cooked through, add the chopped olives and drained capers.
- Leave 2 minutes for the flavours to mingle, then serve.
Cooking Tips
- Chop the parsley and onion together — it becomes one seasoning
- Brown the base lightly before the tomatoes go in
- Keep the simmer gentle so the fish poaches, not boils
- Add olives and capers only at the end
- Spoon the sauce over the steaks to serve
Frequently Asked Questions About Swordfish with Olives and Capers
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1. Swordfish or cod — which is better here?
Both work — swordfish stays firmer, cod flakes more tenderly.
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2. Why butter instead of olive oil?
The sauce is built on butter for a silkier, milder base — unusual and good.
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3. Can I use fresh tomatoes?
Yes — about 4 ripe tomatoes, peeled, seeded and chopped.
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4. How do I know the fish is done?
It turns opaque and flakes (cod) or firms evenly (swordfish) — about 15 gentle minutes.
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5. How do I store leftovers?
Refrigerate up to 2 days; reheat very gently in the sauce.
Cooking Guides & Tips
- A Guide to Olive Varieties: Manzanilla, Queen, Kalamata and Ripe A quick guide to the most common olive varieties — Manzanilla, Queen, Kalamata and ripe black olives — and how to use each.
- How to Cook with Olives: Tapenade, Puttanesca and Beyond Beyond snacking — how to turn olives into tapenade, puttanesca and other big-flavour dishes.
Swordfish with Olives and Capers Made Simple
Swordfish with Olives and Capers is gentle pan-cooking with a briny finish. Unico plum tomatoes, olives and capers do everything but the fishing.