Chicken Mole

Name: Chicken Mole
Ingredients: 8 cups water; 2 tablespoons kosher salt, divided; 4 bone-in, skin-on chicken quarters (about 3 1/4 pounds); 3 3/4 cups vegetable oil, divided; 12 garlic cloves, divided; 4 1/2 cups diced plum tomatoes; 3 1/2 cups diced yellow onion; 8 dried guajillo chiles (1 3/4 ounces), stemmed; 6 dried chiles de árbol (1/8 ounce), stemmed; 4 dried ancho chiles (2 1/2 ounces), stemmed; 3 dried pasilla negro chiles (3/4 ounce), stemmed; 2 dried mulato chiles (1 ounce), stemmed; 1/2 cup sesame seeds, plus more for garnish; 1/2 cup pepitas; 3 ( 6-inch) corn tortillas, plus more for serving; 1 (3 1/2-ounce) bolillo or demi baguette, torn into pieces (about 5 1/2 cups); 1 (about 3-ounce) Mexican chocolate disk (such as Dandelion or Ibarra); Cooked long-grain white rice, for serving