Authentic Tacos al Pastor

Ingredients (15)

• + 1 tomato add to pantry
• + 3 dried guajillo chile peppers, seeded add to pantry
• + 2 dried ancho chile peppers, seeded add to pantry
• ✓ 1 pineapple, sliced 3/4-inch thick
• + ½ cup orange juice add to pantry
• + 1 onion, quartered add to pantry
• + ¼ cup white vinegar add to pantry
• + 2 chipotle peppers in adobo sauce add to pantry
• + 1 tablespoon salt, or to taste add to pantry
• + 2 cloves garlic, crushed add to pantry
• + 1 teaspoon cumin seeds add to pantry
• + 1 teaspoon dried oregano add to pantry
• + 2 pounds boneless pork loin, thinly sliced add to pantry
• + ½ cup chopped onion add to pantry
• + ½ cup chopped fresh cilantro add to pantry