1. Preheat your oven: Set it to 350°F if using a Dutch oven or between 400°F to 425°F for a standard baking dish. This ensures even cooking for the dish.
2. Prepare your baking dish: Use an 8×8 or 9×9-inch baking dish (or Dutch oven). Add sliced butter to the bottom, making sure it is evenly distributed for uniform melting.
3. Combine the ingredients: In your prepared dish, mix together the long-grain white rice, condensed French onion soup, and beef broth or consommé. Stir well to ensure an even blend. If desired, add 1 teaspoon of garlic powder for extra flavor.
4. Cover and bake: Tightly cover the dish with aluminum foil to lock in moisture. Place it in the oven and bake for 30 minutes, allowing the rice to absorb the savory flavors.
5. Finish baking uncovered: Remove the foil carefully and bake the dish uncovered for an additional 30 minutes. This step helps any excess liquid evaporate and creates a lightly golden crust on top.
6. Check for doneness: After a total of 1 hour, check the rice to ensure it is tender and cooked through. If it requires more cooking, add a splash of broth, cover, and bake for a few more minutes as needed.
7. Fluff and serve: Remove the dish from the oven and let it sit for 5 minutes. Use a fork to fluff the rice gently, separating the grains and evenly distributing flavors. Serve warm as a side dish with your favorite proteins or meals.