Peruvian Pork and Quinoa Soup

Name: Peruvian Pork and Quinoa Soup
Ingredients: One 3-pound pork butt; Kosher salt and black pepper; 1 1/4 cups cups quinoa, rinsed well; 2 large yams, peeled and diced; 1/3 cup olive oil, plus more for roasting; 1 cup finely diced carrot; 1 cup finely diced onion; 2 tablespoons minced garlic; 2 teaspoons coriander seeds, toasted and ground; 1 teaspoon turmeric; 3 quarts vegetable, chicken or pork stock (preferably homemade); White pepper; 2 tablespoons lime juice; Fresh cilantro leaves, for garnish