Slow Cooker King Ranch Chicken Soup

Name: Slow Cooker King Ranch Chicken Soup
Prep time: 25 min
Cook time: 4 h
Total time: 4 h 25 min
Cuisine: American
Ingredients: 8 Tbsp butter; 2 cloves garlic (minced); 1/2 c. all-purpose flour; 3 c. low-sodium chicken broth; 4 tsp chili powder; 1 Tbsp ground cumin; 1 Tbsp garlic powder; 1 tsp salt; Freshly ground pepper (to taste); 1 1/2 lb boneless (skinless chicken breasts); 1 10 oz can diced tomatoes with green chiles (mild, original or hot depending on your heat preference); 1 medium jalapeno (minced (seeds and membranes left intact for spicy, removed for mild)); 2 c. Colby Jack cheese, plus more for topping; Tortilla chips (for servings,); Fresh cilantro (chopped, for serving, optional)