How to Make It
In a large saucepan, combine the water with the garlic cloves, whole small white onion, 2 of the bay leaves and 1 teaspoon of salt and bring to a boil; simmer for 10 minutes. Add the fish in a single layer and simmer over moderate heat until just cooked through, about 5 minutes. Transfer the fish to a platter to cool. Break the fish into large pieces, discarding any bones and skin.
In a large skillet, heat the olive oil and vegetable oil until shimmering. Add the chopped white onion and cook over high heat, stirring, until just beginning to brown, about 3 minutes. Add the tomatoes, parsley, mint, thyme and the remaining 4 bay leaves and cook over moderately high heat, stirring occasionally, until a thick sauce forms, about 8 minutes. Stir in the olives, pickled jalapeños and Garlic">http://www.foodandwine.com/recipes/garlic-seasoning-ajo-preparado">Garlic Seasoning (Ajo Preparado). Add the fish and cook until warmed through and all of the liquid has been absorbed, about 5 minutes. Discard the bay leaves and season the hash with salt. Transfer to a bowl and serve.