Corn Casserole

1 box Jiffy mix corn bread mix
1 can cream style corn
1 can whole kernel corn (undrained)
8 oz. sour cream 1 stick butter or margarine 

Melt butter in 9×12 inch pan. Mix all ingredients together. Pour half the melted butter in mixture and stir. Pour mixture into pan with remainder of butter and cook approximately 1 hour at 350 degrees.