Yucatan Baked Grouper – – achiote seasoning, garlic (peeled and chopped), oregano, olive oil, orange juice, fish ( filet, grouper, sea bass or halibut), olive oil (for searing), Combine all ingredients, except fish, in a large plastic bag and mix well. Add the fish filet and cover with rub on all sides. Place in the refrigerator for 1 hour.; When ready to cook, preheat oven to 400 degrees F. Heat an ovenproof heavy skillet or pan on the stove top with a little olive oil to coat the bottom. When very hot, place the fish, flesh side down in the pan. Sear until golden brown with a slight crispy crust. Flip on other side (skin side if still on) and sear again for a few minutes. ; Place the entire pan with fish in the preheated oven. Cook until done (10 to 20 minutes). (This will vary depending on thickness of the fish. Our 1” thick grouper filet was in the oven for 15 minutes.) ; – Buy achiote paste at a Mexican specialty market or online