White Chicken Chili With Avocado Cream

Name: White Chicken Chili With Avocado Cream
Ingredients: 1 serrano chile; 1 jalapeno; 1 medium onion, peeled and halved; Cooking spray; 4 cups unsalted chicken stock, divided; 2 tablespoons all-purpose flour; 1 chipotle chile, canned in adobo sauce; 1 ½ teaspoons adobo sauce; 2 (15 ounce) cans unsalted cannellini beans, drained, rinsed, and divided; 5 ½ teaspoons olive oil; 8 garlic cloves, minced; 1 tablespoon ground cumin; 1 teaspoon dried oregano; ¾ teaspoon ground coriander; 1 pound ground pork; 2 pounds boneless, skinless chicken breasts, cut into bite-size pieces; 3 cups fresh white corn kernels; 1 (15 ounce) can unsalted chickpeas, drained and rinsed; 1 cup half-and-half; ¾ cup chopped fresh cilantro, divided; 1/3 cup plus 1 1/2 tsp. fresh lime juice, divided; 2 ⅜ teaspoons kosher salt, divided; 1 medium ripe peeled avocado; ⅓ cup light sour cream; 3/4 cup diced tomatillo