Mexican Style Pork Tacos ( Tacos Al Pastor)

Here is what you ll need Homemade Al Pastor Serves 1012 INGREDIENTS 5 pounds boneless pork shoulder 3 tablespoons achiote paste 2 tablespoons guajillo chili powder 1 tablespoon garlic powder 1 tablespoon oregano 1 tablespoon cumin 1 tablespoon salt 1 tablespoon pepper cup white vinegar 1 cup pineapple juice 1 pineapple, skinned and sliced into 1inch rounds 1 thick wooden skewer, trimmed to the height of your oven 1012 small corn tortillas 1 white onion, chopped finely 1 cup cilantro, chopped finely