Creamy Chicken Soup with Vegetables

1 Cup butter
2 cups flour
1 quart milk
2 chicken breasts (boneless skinless)
small pkg frozen mixed vegetables
2 tbsp chicken bouillon granules
salt & Pepper to taste

Cook chicken in large soup0 pan until done. Remove chicken, Add butter to pan and melt. Once the butter is melted add flour with wire whisk. When this is all blended add all of the milk with the whisk, keep stiring until it starts to thicken. Once soup is as thick as you want it dice the chicken and add to the soup with the vegetables. Add the bouillon and salt and pepper to taste. If it gets too thick add more milk to thicken.