Chicken Tortilla with broth

3 cloves garlic, minced 1 onion, chopped 3 tablespoons margarine 2 tablespoons all-purpose flour 3 (14 ounce) cans chicken broth 4 cups half-and-half 1 (10.75[...]

1/4 cup butter or 1/4 cup margarine 1/4 cup all-purpose flour 3 cups chicken broth 1 cup milk 8 ounces Velveeta cheese , food cubed 1 (10 ounce) can ro*tel[...]