This French Onion Funeral Potatoes recipe elevates the classic comfort dish with the savory and rich flavor of French onion soup. It's an irresistible side dish perfect for potlucks, family gatherings, or any occasion where you want to impress with a unique and comforting potato casserole.
Don’t overbake to prevent drying out the casserole. Adjust seasoning as needed, but be cautious with salt due to the French onion soup mix. The casserole can be assembled ahead of time and refrigerated for up to 24 hours. Add the cornflake topping just before baking. Freezes well for up to 3 months; thaw overnight in the refrigerator before baking. For variations, add diced ham, bacon, or sautéed onions. Experiment with different cheeses like Gruyere or Swiss.