Sue Farley's Cheezie Taters

1--- 2lb. bag hash brown's {the chunky kind}

2--- sticks  butter or margarine

1---10 and 3/4 oz. can cream of chicken soup

1--- medium onion {chopped}

1--- teaspoon salt

1/2--- teaspoon pepper

2--- cups grated cheddar cheese {I like mild, but you can use sharp if you like}

1--- cup crushed corn flakes

1--- pint {16oz} sour cream 

Make this up the night before, that's what makes it the best!