Swordfish Tacos Al Pastor

Name: Swordfish Tacos Al Pastor
Ingredients: 2 1/2 tablespoons grapeseed oil, plus extra for brushing; 8 garlic cloves, coarsely chopped; 2 teaspoons dried oregano; 1 teaspoon freshly ground cumin seeds; 2 1/2 tablespoons grapeseed oil (plus extra for brushing); 1 teaspoon freshly cracked black pepper; 1/2 teaspoon freshly ground cloves; 7 dried Guajillo or Ancho chillies, stems and seeds removed, cut into 2.5 cm (1 in) pieces; 180 ml (6 fl oz) pineapple juice; 2 1/2 fl oz (1/3 cup) apple-cider vinegar; 100 g (3 1/2 oz/1/3 cup) achiote paste; sea salt flakes; 2 kg (4 lb 6 oz) trimmed swordfish loin (sliced into 3 mm (1/8 in) thick rounds); 1/2 medium pineapple (peeled); 20 warm corn tortillas; 1 large onion, finely diced; 2 bunches coriander (cilantro) (stems and leaves coarsely chopped); 3 limes (cut into wedges)