Creating Funeral Potatoes with Hashbrowns is simple if you follow these steps:

1. Preheat the Oven: Start by preheating your oven to 350°F (175°C).
2. Prepare the Baking Dish: Grease a 9×13-inch baking dish with non-stick spray or butter.
3. Mix Ingredients: In a large bowl, combine the thawed hashbrowns, sour cream, cream of chicken soup, cheddar cheese, melted butter, onion powder, garlic powder, salt, and black pepper. Stir well until everything is evenly mixed.
4. Transfer to Baking Dish: Pour the mixture into the prepared baking dish, spreading it out evenly.
5. Prepare the Topping: In a separate bowl, mix the crushed cornflakes or potato chips with a little melted butter. This will create a tasty, crunchy topping.
6. Add Topping: Sprinkle the cornflake or potato chip mixture evenly over the hashbrown mixture.
7. Bake: Place the baking dish in the preheated oven and bake for 45 minutes, or until the top is golden brown and bubbly.
8. Cool Slightly: Once baked, remove from the oven and let it cool for about 10 minutes before serving. This will help it set up a bit.
9. Serve: Scoop out portions and serve warm to enjoy the incredible flavors.

Following these steps will ensure your Funeral Potatoes with Hashbrowns turn out perfectly every time.