Preheat oven to 375 degrees.
Cut butter into cubes. Place in a 9 x 13 glass dish. Put in oven.
While the butter is melting, mix sour cream and cream of chicken in a bowl.
Take the pan out of the oven, pour hashbrowns over the melted butter. Mix together. Careful not to burn yourself.
Add sour cream/cream of chicken mixture to the potatoes. Stir together to coat all the potatoes.
Add shredded cheese to the potatoes. Stir together so cheese is mix in well. SECRET: sometimes I add an additional 1/4 cup of sharp chedder cheese for extra flavor!
This is what it looks like before you put it in the oven.
Now it's ready to go in the oven. Cover and bake for 1 hour or until the potatoes are soft. Depending on your oven you may need to bake longer than 1 hour.
Yum!!! You can top with crushed potato chips if you wish.