01 -
Preheat oven to 350°F. Lightly butter a 9-x 13-inch casserole or baking dish.
02 -
In a large bowl, combine sour cream, cream of chicken soup, 1 cup Cheddar cheese, 2 Tbsp. melted butter, chopped onion, and salt. Mix well. Add hash browns, and stir until well combined, then spread in the prepared pan.
03 -
In a medium bowl, combine the cornflakes, remaining 1 cup of Cheddar cheese, and remaining 2 Tbsp. melted butter. Sprinkle evenly over the potatoes in the pan.
04 -
Bake the casserole for 45 minutes, or until crispy on top and golden brown around the edges.