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Grilled Swordfish with Lemon Caper Sauce

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This easy 30-minute grilled swordfish recipe features juicy steaks topped with a tangy lemon caper sauce. It’s a crowd-pleaser perfect for summer gatherings, weeknight dinners, or impressing guests with minimal effort.

Ingredients

Scale
  • 4 swordfish steaks (about 6 oz each, 1-inch thick, boneless)
  • 2 tablespoons olive oil, divided
  • 1 teaspoon kosher salt
  • 1/2 teaspoon freshly cracked black pepper
  • 1/4 cup freshly squeezed lemon juice (about 1 large lemon)
  • 1 teaspoon lemon zest
  • 2 tablespoons capers, drained and roughly chopped if large
  • 2 cloves garlic, minced
  • 2 tablespoons dry white wine (optional)
  • 2 tablespoons unsalted butter, cut into pieces
  • 2 tablespoons fresh parsley, chopped
  • Lemon slices (for garnish, optional)
  • Fresh dill or basil (for garnish, optional)

Instructions

  1. Pat swordfish steaks dry with a paper towel. Brush both sides with 1 tablespoon olive oil. Sprinkle evenly with kosher salt and black pepper. Let steaks sit at room temperature for 10 minutes.
  2. Preheat outdoor grill or grill pan to medium-high (about 400°F). Clean and oil the grates well.
  3. Place swordfish steaks on the hot grill. Cook for 3-4 minutes on the first side. Flip gently and grill another 3-4 minutes, until opaque and just cooked through.
  4. Transfer steaks to a platter. Tent loosely with foil and let rest for 3-5 minutes.
  5. In a small saucepan over medium-low heat, add remaining 1 tablespoon olive oil. Sauté minced garlic for 30 seconds until fragrant. Add lemon juice, zest, capers, and white wine (if using). Simmer for 2-3 minutes, until slightly reduced.
  6. Remove from heat, stir in butter until melted and smooth, then mix in fresh parsley.
  7. Spoon warm sauce generously over swordfish steaks. Garnish with lemon slices and extra parsley. Serve immediately.

Notes

For dairy-free, swap butter with extra olive oil. Swordfish cooks quickly—avoid overcooking for best texture. Clean and oil grill grates well to prevent sticking. Sauce can be made ahead and reheated gently. Substitute mahi-mahi or halibut if swordfish is unavailable. Add grilled veggies or swap herbs for variation.

Nutrition

Keywords: grilled swordfish, lemon caper sauce, easy seafood recipe, summer grilling, healthy fish dinner, gluten-free, quick weeknight meal

Find it online: https://lucydishes.com/grilled-swordfish-with-lemon-caper-sauce-easy-30-minute-recipe/