Ingredients:

  • 4 Mahi Mahi fillets (approx. 6 oz / 170g each), 1-inch thick
  • 2 tbsp (28g) Unsalted butter, melted
  • 1 tbsp (15ml) Neutral oil (Avocado or Grapeseed)
  • 1 tbsp (6g) Smoked paprika
  • 1 tsp (3g) Garlic powder
  • 1 tsp (3g) Onion powder
  • 1 tsp (2g) Dried oregano
  • 1 tsp (2g) Dried thyme
  • 0.5 tsp (1g) Cayenne pepper
  • 1 tsp (6g) Kosher salt
  • 0.5 tsp (1g) Coarse black pepper

Instructions:

  1. Pat the mahi mahi fillets with paper towels until they are completely dry to the touch. Let them sit at room temperature for 10 minutes to ensure even cooking.
  2. Brush both sides of the fillets generously with the melted butter. Combine all spices in a small bowl and sprinkle the rub over the fish, pressing it firmly with your fingers to create a thick, even coating.
  3. Heat a 12-inch cast iron skillet over medium-high heat with the neutral oil. Once the oil shimmers, lay the fish into the pan.
  4. Press down lightly with a fish spatula for 10 seconds. Sear undisturbed for 3–4 minutes until a deep mahogany crust forms.
  5. Flip the fillets carefully and cook for another 3–4 minutes until the internal temperature reaches 145°F (63°C) and the fish flakes easily.