Creating French Onion Beefloaf is a straightforward process, and following these steps will lead you to a delicious meal:

1. Preheat Oven: Begin by preheating your oven to 350°F (175°C). Line a baking dish with parchment paper for easy cleanup.
2. Sauté Onions: In a skillet, sauté the sliced onions over medium heat until they’re caramelized and golden brown, about 15-20 minutes. Stir occasionally.
3. Mix Ingredients: In a large bowl, combine ground beef, breadcrumbs, eggs, garlic powder, onion powder, salt, pepper, Worcestershire sauce, and half of the caramelized onions (reserve the other half for topping).
4. Add French Onion Soup: Gently mix in 1 cup of French onion soup until it’s evenly distributed throughout the meat mixture.
5. Shape the Loaf: Transfer the meat mixture to your prepared baking dish. Form it into a loaf shape, smoothing the top with a spatula.
6. Bake: Place the beefloaf in the preheated oven and bake for 45–50 minutes, or until the internal temperature reaches 160°F (70°C).
7. Add Cheese: About 10 minutes before the loaf is done, remove it from the oven. Sprinkle the remaining Gruyère cheese and the reserved caramelized onions on top, then return it to the oven.
8. Rest Time: Once cooked, remove the beefloaf from the oven and let it rest for 10-15 minutes. This allows the juices to redistribute, keeping the loaf moist.
9. Garnish: Before serving, sprinkle with chopped fresh parsley for a vibrant and flavorful finish.

This step-by-step guide sets you on the track to enjoying a scrumptious meal that is likely to become a staple in your household!