Al Pastor Tacos with Roasted Tomatillo Avocado Salsa

Name: Al Pastor Tacos with Roasted Tomatillo Avocado Salsa
Ingredients: 1/2 cup fresh orange juice; 2 tablespoons white vinegar; 1 tablespoon chili powder; 1 tablespoon granulated garlic; 1 teaspoon kosher salt; 1/2 teaspoon ground cumin; 1/2 teaspoon smoked paprika; 2 chipotle chiles in adobo, plus 1 teaspoon adobo sauce; 1 white onion, half roughly chopped, half finely diced; 1/2 pineapple, peeled and cored, half rough chopped, half cut into wedges; One 4-pound pork butt; 3 sprigs fresh oregano; 1 cup chicken stock; Vegetable oil, as needed; Corn tortillas, for serving; Fresh cilantro leaves, chopped, to garnish; Grilled lime wedges, to garnish; Roasted Tomatillo Avocado Salsa, recipe follows; 6 medium tomatillos, husked (about 8 ounces each); Extra-virgin olive oil; 1 teaspoon ground cumin; 1 ripe avocado, peeled and diced; 1 clove garlic, minced; 1/2 jalapeno, seeds removed and coarsely chopped; 1/2 sweet onion, roughly chopped; Juice of 2 limes; 2 cups fresh cilantro leaves