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How to Cook Royal Apahap Au Gratin (Sea Bass Au Gratin)

Prep Time10 mins
Cook Time40 mins
Total Time50 mins
Course: Fish Recipe
Cuisine: Filipino
Servings: 2 servings
Author: Manny


  • 1 Large onion sliced into rings
  • 1 large 1/2 kilo sea bass (apahap) or grouper (lapu-lapu)
  • 1 tablespoon sea salt
  • 1 tablespoon lemon or calamansi juice
  • 1/4 cup olive oil
  • 2 tablespoons water
  • 1 quart mayonnaise

For the sauce:

  • 1 teaspoon chopped garlic
  • 1/2 cup olive oil
  • 1/2 cup chopped onions
  • 3/4 kilo tomatoes. peeled seeded and chopped
  • 1/4 teaspoon ground oregano
  • 1/8 teaspoon thyme
  • 1 teaspoon sea salt
  • 1/4 teaspoon ground black pepper
  • 1/4 teaspoon MSG
  • 1 tablespoon chopped parsley


    How to cook Royal Apahap Au Gratin:

    • Arrange onion rings in baking dish. Rub with sea salt and lemon or calamansi juice. Place fish in baking dish on top of onion rings.
    • Drizzle with olive oil and water. Bake in 350 °F oven for 10 minutes.
    • Spoon sauce over fish and bake for another 15 minutes. Top with mayonnaise, bake for another 5 minutes, then serve.

    How to make the sauce:

    • Over low-medium heat, saute garlic in oil until light golden brown, Add onions and saute until wilted. Add tomatoes and simmer, stirring occasionally for about 20 minutes, then add oregano , thyme, salt, pepper, MSG, and simmer for another 5 minutes. Adjust seasoning to taste, then add parsley.