Crackpot Mac & Cheese

食材

2 cups elbow macaroni uncooked

10 ½ cream of chicken soup 1 can

3 cups shredded cheddar cheese

1 cup shredded gruyere cheese

½ cup mayonnaise

½ cup sour cream regular or light

1 teaspoon onion powder

½ teaspoon dry mustard powder

½ teaspoon black pepper