Creamy white chicken chili

Creamy White Chicken Chili 1 large onion, chopped 1 clove of garlic, minced 1/2 cup flour 1 cup butter 4 cups half and half 1 1/2 cups of chicken broth 4 cans white beans (navy, great northern, or garbanzo), drained and rinsed 2-3 (4 oz) cans chopped green chilies 3-4 boneless skinless chicken breasts cooked and sliced into small pieces 2 cups grated Monterrey Jack cheese 1-2 tsp. Tabasco sauce 1-2 tsp. of chili powder (depending how spicy you want it) 1 tsp. cumin 1 cup sour cream (optional) Cook onion and garlic in a couple tablespoons of butter until soft, not brown. Set aside. If you want to make a roux by melting the butter and whisking the 1/2 cup of flour in. Boil for 3 minutes stirring constantly. Add the onion and garlic to the roux.Add the half and half and chicken broth. Simmer 3 minutes or until thick.Pour mixture into a crockpot then add the white beans, chilies, chicken, cheese, Tabasco sauce, chili powder, and cumin.Simmer 20 minutes. Right before serving add salt and pepper to taste and sour cream (optional). Garnish with cilantro.