Adobo sauce (if you can not find premade): To make your own adobo sauce, whisk together 1 tablespoon tomato paste, 1 tablespoon cider vinegar, 1 teaspoon chipotle powder (or ½ teaspoon EACH smoked paprika and cayenne powder), ½ teaspoon ground cumin, and a pinch EACH of oregano, garlic powder, and salt.