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Golden crispy pan-seared branzino fillet recipe with lemon butter sauce

Crispy Pan-Seared Branzino Fillet with Lemon Butter

This foolproof branzino fillet recipe delivers restaurant-quality results in just 15 minutes. Featuring shatteringly crisp skin and a simple garlic-thyme brown butter sauce, it is the perfect healthy weeknight meal.
Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Course Dinner
Cuisine Mediterranean
Servings 2 fillets
Calories 340 kcal

Equipment

  • Cast-iron or Stainless Steel Skillet
  • Fish Spatula

Ingredients
  

Main Ingredients

  • 2 fillets Branzino (European Bass) fresh, skin-on
  • 2 tbsp Olive Oil
  • Kosher Salt to taste
  • Black Pepper freshly ground

For the Baste & Finish

  • 2 tbsp Unsalted Butter
  • 1 clove Garlic smashed, whole
  • 2 sprigs Fresh Thyme or Rosemary
  • 0.5 Lemon juiced

Instructions
 

  • Prep the Fish: Remove fillets from the fridge 10 minutes prior to cooking. Pat them completely dry with paper towels on both sides. Using a sharp knife, make 3 shallow slashes on the skin side (do not cut deep into the flesh). Season generously with Kosher salt and pepper on both sides.
  • Heat the Pan: Heat a large skillet over medium-high heat. Add the olive oil. Wait until the oil shimmers and starts to smoke slightly.
  • Sear the Skin: Carefully lay the fillets skin-side down into the hot oil, laying them away from you. Immediately press down on the fillets with a fish spatula for 10-15 seconds to prevent curling and ensure even contact.
  • Cook Undisturbed: Let the fish cook undisturbed for 3 to 4 minutes. The edges will turn opaque and the skin should be deep golden brown.
  • Flip and Baste: Flip the fillets. Reduce heat to medium. Add the butter, smashed garlic clove, and thyme sprigs. Tilt the pan and spoon the foaming butter over the fish continuously for 1-2 minutes until cooked through.
  • Finish and Serve: Remove fish from the pan. Squeeze the lemon juice into the remaining brown butter in the pan, swirl, and pour over the fillets. Serve immediately.

Notes

Leftovers: Store in an airtight container for up to 2 days. Reheat in a toaster oven or air fryer at 350°F for 4-5 minutes to recrisp the skin. Do not microwave.
Substitutions: If you cannot find Branzino, use Red Snapper, Sea Bream, or Rainbow Trout.
Keyword gluten free, high protein, keto, Seafood