Broccoli cheese soup (This is the one I make for Halloween)

Broccoli Cheese Soup

Boil until tender:
4 cups potatoes, peeled and cubed
1 onion, chopped
2 cups carrots, chopped
4 stalks celery, chopped
1 medium head broccoli, chopped
1 small head cauliflower, chopped

Boil 2 cups water and dissolve 6 chicken bouillon cubes, set aside

In a sauce pan melt:
1/2 cup butter
1/2 cup flour

add to roux:
1 pint half and half
1/2 teaspoon dry mustard

stir until thick
drain vegetables when tender then add cream sauce and chicken bouillon stir.

add
1 1/2 to 2 cups of cheddar cheese