Ingredients
Equipment
Method
Preparation
- Preheat your oven to 350°F (175°C) and lightly grease a standard 9x13 inch baking dish. Ensure your frozen hashbrowns are completely thawed and gently squeeze them in a clean kitchen towel to remove excess moisture.
Mixing the Base
- In a large mixing bowl, whisk together the canned cream soup, sour cream, 1/2 cup of melted butter, chopped onion (if using), salt, and black pepper until the mixture is smooth and uniform.
- Add 1 1/2 cups of the shredded cheddar cheese to the creamy mixture and stir to incorporate. Reserve the remaining 1/2 cup of cheese for the topping.
Assemble and Initial Bake
- Add the thawed hashbrowns to the mixing bowl. Gently fold the hashbrowns into the creamy cheese base using a spatula until they are evenly coated. Do not mash the potatoes.
- Pour the entire hashbrown mixture into the prepared 9x13 inch baking dish, spreading it into an even layer. Place the casserole in the preheated oven and bake for 30 minutes.
Add Topping and Finish Baking
- While baking, prepare the optional topping: In a small bowl, toss the crushed cornflakes (or alternative) with the 2 tablespoons of melted butter.
- After 30 minutes of baking, remove the casserole from the oven. Sprinkle the reserved 1/2 cup of cheddar cheese evenly over the top, followed by the prepared crunchy topping.
- Return the casserole to the oven and continue baking for another 15 to 20 minutes, or until the casserole is bubbly around the edges and the topping is golden brown. Let it rest for 10 minutes before serving to help the casserole set.
Notes
Ensure you squeeze as much liquid as possible from the thawed hashbrowns. If they retain too much moisture, the final casserole might be watery or runny. For a gluten-free option, use a cream soup substitute (like Cream of Celery) and top with crushed potato chips instead of cornflakes or Ritz crackers.
