The cheesy, comforting potato casserole crowned with a buttery, crunchy cornflake topping.
6 steps, about 60 minutes start to finish.
Preheat oven to 350°F
Mix thawed hashbrowns, sour cream, soup, cheese, melted butter, and onion
Season with salt and pepper
Spread in baking dish
Top with crushed cornflakes and more butter
Bake until golden and bubbly
“Thaw and pat the hashbrowns dry so the casserole sets up creamy instead of watery. The buttered cornflakes go on just before baking so they crisp golden rather than turning soft in the mix.”