Pescado zarandeado (fish taco)

“Each of the components of this dish is delicious — the marinated, grilled fish, spicy mellow salsa and toasted tortillas. Together they sing with flavour and texture. For an authentic Mexican flavour, the achiote paste and Guajillo chillies are well worth seeking out – find them in Spanish delis or specialty stores – and Gerado likes to use his favourite, Pacifico beer, but any pilsner-style beer will do.” Maeve O'Meara, Food Safari Fire