Buffalo Chicken Chili

Name: Buffalo Chicken Chili
Ingredients: 1 1/2 pounds boneless skinless chicken breasts; 2 (14.5-ounce) cans diced fire-roasted tomatoes; 1 can diced fire-roasted green chiles; 1 cup unsalted or low-sodium chicken stock; 3/4 cup buffalo wing sauce , plus more for serving; 1 tablespoon chili powder; 2 teaspoons ground cumin; 2 (15.5-ounce) cans cannellini beans , drained and rinsed; Kosher salt and freshly ground black pepper; Sour cream , crumbled blue cheese, diced green onion, and tortilla chips, for serving