Making Funeral Potatoes can be a fun and fulfilling cooking experience. Follow this easy step-by-step guide:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Mix Base Ingredients: In a large mixing bowl, combine the sour cream, cream of chicken soup, and melted butter until smooth.
3. Add Potatoes: Stir in the frozen hash browns until they are evenly coated.
4. Incorporate Cheese and Onion: Gently fold in the shredded cheddar cheese and chopped onion if using.
5. Season: Add salt and pepper to taste, mixing everything until well combined.
6. Transfer to Baking Dish: Pour the mixture into a greased 9×13-inch baking dish, spreading it evenly.
7. Prepare Topping: In a separate bowl, combine crushed corn flakes and grated Parmesan cheese. Mix until the flakes are evenly coated.
8. Add Topping: Sprinkle the corn flake mixture over the hash brown mixture in an even layer.
9. Bake: Place the baking dish in the preheated oven and bake for 45-50 minutes until bubbly and golden brown on top.
10. Cool Slightly: Once out of the oven, let it sit for about 5-10 minutes before serving for the best texture.

These steps guide you through preparing these amazing Funeral Potatoes, perfect for sharing with family and friends.