Start by making the mojo marinade for the pork. In a large marinating dish, combine the cilantro, garlic, olive oil, orange juice, lime juice, oregano, cumin, salt, and pepper. Stir to combine and set aside for 10 minutes to allow flavors to meld.
¼ cup finely chopped fresh cilantro, 4 cloves garlic, ¼ cup olive oil, ¼ cup orange juice, 2 tablespoons lime juice, 1 teaspoon dried oregano, 1 teaspoon ground cumin, ½ teaspoon kosher salt, ½ teaspoon freshly ground black pepper