Pan Seared Peppered Swordfish with Red Onion

Swordfish takes to heavy pepper the way steak does: the black pepper forms a crust in the hot pan and keeps the interior juicy. This version pairs seared swordfish with a raw red onion, orange, and cilantro salad that works like a relish, cutting through the richness of the fish with acidity and bite.

Let the peppered steaks sit for 5 minutes before hitting the pan. That short rest lets the pepper grind settle into the surface moisture of the fish so it sticks through the sear instead of sloughing off. Hot pan, medium-high heat, and about 3 minutes per side is all you need for 1-inch steaks.

The salsa comes together in the time the fish rests. Peeled orange segments (cut between the membranes for cleaner wedges if you want), sliced red onion, and chopped cilantro tossed in olive oil. Spoon over the just-cooked swordfish to finish.

Chef Tips

• Pat the swordfish bone-dry before pressing the pepper in. Surface moisture blocks the crust from developing properly.
• Use freshly cracked pepper (not pre-ground) for real bite. Pre-ground pepper has lost most of its aromatic oils.
• Don’t move the fish once it hits the pan. Let it sear undisturbed for the full 3 minutes; moving it tears the crust.
• Soak sliced red onion briefly in cold water if you want to mellow its sharp raw edge before adding to the salsa.

Variations

• Swap orange for blood orange or grapefruit for a more bitter, complex citrus salsa.
• Add a diced avocado to the onion-citrus mix for a creamy contrast against the peppered fish.
• Substitute firm tuna steaks or halibut for swordfish; the technique translates directly.