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Herb-Roasted Branzino with Lemon-Caper Butter

A simple, elegant branzino recipe that roasts whole fish with fresh herbs, lemon and a bright caper-butter sauce. Crispy skin, tender flesh and vibrant citrus notes make this a weeknight winner or show-stopping centerpiece.

Prep Time 15 min
🔥
Cook Time 30 min
Total Time 45 min
👥
Servings 4
Difficulty Easy
Mediterranean Balanced Mediterranean Balanced

About This Recipe

A simple, elegant branzino recipe that roasts whole fish with fresh herbs, lemon and a bright caper-butter sauce. Crispy skin, tender flesh and vibrant citrus notes make this a weeknight winner or show-stopping centerpiece.

Ingredients

  • 4 whole branzino (about 10-12 oz each), scaled and gutted, heads on
  • 2 lemons, 1 thinly sliced, 1 halved for finishing
  • 4 tbsp unsalted butter, softened
  • 2 tbsp extra-virgin olive oil, plus extra for brushing
  • 2 tbsp capers, rinsed and drained
  • 4 cloves garlic, minced
  • 2 tbsp fresh parsley, finely chopped
  • 1 tbsp fresh thyme leaves, chopped
  • 1 tsp fennel seeds, crushed (optional)
  • 1/2 tsp red pepper flakes (optional)
  • Kosher salt and freshly ground black pepper
  • Fresh arugula or baby spinach, for serving (about 4 cups)
  • Lemon wedges, for serving

Nutrition Facts

450 Calories 23% daily value
34.00g Protein 68% daily value
8.00g Carbs 3% daily value
30.00g Fat 46% daily value
1.00g Fiber 4% daily value

Instructions

  1. 1
    Step 1: Preheat the oven to 425°F (220°C). Line a rimmed baking sheet with parchment paper or lightly oil a roasting pan.
  2. 2
    Step 2: Pat the branzino dry inside and out with paper towels. Season the cavities and both sides generously with salt and pepper.
  3. 3
    Step 3: In a small bowl, combine the softened butter, minced garlic, chopped parsley, thyme, crushed fennel seeds (if using), and half of the lemon slices finely chopped. Mix until smooth.
  4. 4
    Step 4: Gently loosen the skin along the top of each fish by sliding your fingers between skin and flesh. Spread about 1 tablespoon of the herb-butter mixture under the skin of each branzino and rub a little on the outside skin as well.
  5. 5
    Step 5: Stuff each fish cavity with 2-3 thin lemon slices and a few parsley sprigs. Arrange the branzino on the prepared sheet, brush lightly with olive oil, and scatter the capers and remaining lemon slices around the fish.
  6. 6
    Step 6: Roast in the preheated oven for 18-22 minutes, until the skin is crisp and flesh flakes easily when tested with a fork (internal temp about 130–135°F / 54–57°C).
  7. 7
    Step 7: While the fish roasts, heat 2 tablespoons of olive oil in a small skillet over medium heat. Add the capers and red pepper flakes, and sauté for 1-2 minutes until the capers are slightly crisp. Remove from heat and stir in the juice of the halved lemon and any pan juices.
  8. 8
    Step 8: Transfer the roasted branzino to a platter set over a bed of arugula or baby spinach. Spoon the lemon-caper butter pan sauce over the fish and serve with extra lemon wedges.

💡 tips

For the crispiest skin, make sure the fish is very dry before roasting and don't overcrowd the pan. If whole fish are hard to find, fillets work too—reduce roasting time to 8–10 minutes. Let the fish rest 2 minutes before serving to lock in juices.

🔄 substitutions

Swap branzino for whole sea bass, snapper, or trout. Use ghee or a neutral oil instead of butter for a dairy-free option. Substitute fresh tarragon or dill for thyme/parsley for a different herb profile.

📦 storage

Cool leftovers to room temperature then refrigerate in an airtight container for up to 2 days. Reheat gently in a 325°F (165°C) oven for 8–10 minutes to avoid drying the fish. Leftover flesh is also great flaked into salads or tossed with pasta.