If there’s one dish that can steal the show at a potluck, family gathering, or even a cozy night in, it’s French Onion Funeral Potatoes. Packed with creamy potatoes, sharp cheddar cheese, and a rich homemade sauce, this casserole is pure comfort food. Topped with golden fried onions for that perfect crunch, it’s the dish you’ll want to make over and over again. Let me walk you through the first steps of creating this irresistible recipe.
Why French Onion Funeral Potatoes Are a Must-Try
There’s something magical about funeral potatoes—they’re hearty, satisfying, and ooze with cheesy goodness. Add the flavors of French onion, and you’ve got a recipe that’s as comforting as a warm hug. Whether you’re looking for a crowd-pleaser for holidays or just a simple way to elevate a weekday meal, this casserole fits the bill.
Plus, it’s super versatile! You can make it ahead of time, customize the spices, or even throw in extra ingredients like crispy bacon or diced ham. Trust me, one bite, and you’ll understand why this dish is a beloved classic.
Getting Started: Prepping Your Potatoes
To begin, you’ll need a 9×13-inch baking dish and a preheated oven set to 350°F (175°C). Spray the dish with nonstick spray to ensure easy cleanup later—because who wants to spend their evening scrubbing dishes?
In a large bowl, combine 32 ounces of thawed, cubed hash browns with ¼ cup of melted unsalted butter, 2 cups of shredded sharp cheddar cheese, and 1½ cups of sour cream. This creamy potato base is where the magic starts. Once mixed well, set it aside while we move on to the homemade sauce.
Making the Sauce: The Secret to a Perfect Casserole
A rich and flavorful sauce is what sets this recipe apart. Start by melting ¼ cup of butter in a medium-sized skillet over medium heat. Add one small diced yellow onion and sauté it for about 3-5 minutes until it’s soft and fragrant. Then, stir in 2 teaspoons of minced garlic and cook for another minute—your kitchen will already start to smell amazing!
To thicken the sauce, sprinkle in ¼ cup of all-purpose flour, stirring it into the onion and garlic mixture. Add in your spices: 1 teaspoon of kosher salt, ½ teaspoon of black pepper, ½ teaspoon of cayenne pepper for a little kick, and ½ teaspoon of dried mustard for depth. Cook this mixture for a minute to toast the flour and develop the flavors.
Now comes the creamy part! Gradually whisk in ½ cup of room-temperature chicken broth followed by ½ cup of whole milk. Stir constantly until the sauce thickens to a smooth, velvety consistency. This step is key to ensuring every bite of your casserole is rich and flavorful.

Assembling the Casserole
With your sauce ready, pour it into the potato mixture and stir until everything is fully combined. The result is a perfectly creamy potato base that’s already hard to resist! Transfer the mixture into your prepared baking dish, spreading it out evenly to create a smooth layer.
Now it’s time for the oven to work its magic. Bake the casserole uncovered for 45-50 minutes, or until it’s bubbling and golden around the edges. While it bakes, you’ll prepare the pièce de résistance: crispy fried onions.
Perfecting the Crispy Fried Onions and Adding Final Touches
Welcome back to the second half of your French Onion Funeral Potatoes journey! By now, your casserole is bubbling away in the oven, filling your home with a tantalizing aroma. It’s time to focus on the crowning glory of this dish: those irresistible crispy fried onions. Let’s dive in and make this casserole unforgettable.
Frying Onions: The Golden Crunch Your Casserole Needs
Nothing beats the satisfying crunch of golden fried onions, and they’re surprisingly simple to make! While the casserole bakes, heat 4 cups of vegetable oil in a large, heavy-bottomed saucepan over medium-high heat. You’ll know it’s ready when it reaches 350°F (175°C)—use a thermometer for precision or drop a small piece of onion into the oil. If it sizzles immediately, you’re good to go.
Next, thinly slice 2 large yellow onions. To achieve even slices (and avoid tears!), use a sharp knife or mandoline. Working in batches, carefully add about 1 cup of onion slices to the hot oil. Fry for 2-5 minutes, stirring occasionally to ensure even cooking. The onions should turn a pale golden brown—keep a close eye on them to avoid burning.
When the onions are ready, use a slotted spoon or fine mesh strainer to remove them from the oil. Place them on a paper towel-lined baking sheet to drain excess oil, and immediately sprinkle with kosher salt for that extra punch of flavor. Repeat with the remaining onions until all are beautifully crispy.
Pro Tip: If you want an extra boost of flavor, try seasoning the onions with garlic powder or paprika while they’re still hot.

Putting It All Together: The Grand Finale
By now, your casserole should be baked to perfection—bubbly, creamy, and golden brown around the edges. Carefully remove it from the oven and let it rest for a few minutes. This helps everything set and makes it easier to top with your crispy onions.
Evenly distribute the fried onions over the entire surface of the casserole. This not only adds a delightful crunch but also enhances the dish’s presentation, making it look as good as it tastes. If you’re feeling fancy, garnish with a sprinkle of fresh parsley or chopped chives for a pop of color.
Tips and Tricks for French Onion Funeral Potatoes
To ensure your casserole is the star of the show, here are a few handy tips:
- Make It Ahead: Prep the casserole a day in advance and store it in the refrigerator. Bake it just before serving, and fry the onions fresh for optimal crunch.
- Customize the Flavors: Add cooked bacon, diced ham, or even sautéed mushrooms to the potato mixture for an extra twist. A sprinkle of smoked paprika or a dash of hot sauce in the sauce can also elevate the dish.
- Cheese Variations: While sharp cheddar is classic, you can experiment with Gruyère, Monterey Jack, or even a mix of cheeses for a unique flavor profile.
- Keep Fried Onions Fresh: If you’re making the onions ahead, store them in an airtight container at room temperature to maintain their crispiness.

Serving Suggestions
French Onion Funeral Potatoes are versatile and pair well with a variety of main dishes. Serve them alongside roasted chicken, grilled steak, or a holiday ham for a complete meal. They’re also a crowd-pleaser at potlucks, making them a go-to recipe for any gathering.
For a fun twist, try serving these potatoes as the centerpiece of a vegetarian meal. Pair them with a crisp green salad, roasted vegetables, and crusty bread for a satisfying, meat-free feast.
By now, your French Onion Funeral Potatoes should be ready to steal the show, with their creamy, cheesy base and irresistible crunchy onion topping. But before you dive into the cheesy goodness, let’s tackle some frequently asked questions and wrap up this culinary journey.
FAQs: All Your French Onion Funeral Potatoes Questions Answered
1. Can I use fresh potatoes instead of frozen hash browns?
Absolutely! If you prefer fresh potatoes, peel and dice about 6-7 medium-sized russet potatoes. Boil them until slightly tender (not fully cooked) before using them in the recipe. This step ensures they’ll cook through in the oven.
2. Can I make this dish vegetarian?
Yes! Substitute the chicken broth in the sauce with vegetable broth. The rest of the ingredients are already vegetarian-friendly, making it an easy swap for meatless meals.
3. How do I store leftovers?
Store any leftover casserole in an airtight container in the refrigerator for up to 3-4 days. Reheat in the oven at 350°F (175°C) for about 20 minutes, or until warmed through, to maintain the crispy onion topping.
4. Can I freeze French Onion Funeral Potatoes?
Yes! You can freeze the casserole before baking it. Cover it tightly with plastic wrap and aluminum foil, then freeze for up to 2 months. When ready to serve, thaw it overnight in the fridge, bake as directed, and prepare the fried onions fresh.
5. What’s the best way to keep fried onions crispy?
To keep fried onions crispy, store them in an airtight container at room temperature for up to two days. Add them to the casserole just before serving to maintain their crunch.
6. Can I make this gluten-free?
Definitely! Use gluten-free all-purpose flour in the sauce and double-check that your broth and other ingredients are gluten-free. You’ll still get that creamy, delicious texture.
7. How can I prevent the casserole from becoming too greasy?
To avoid an overly greasy casserole, use high-quality butter and cheese, and thoroughly mix the potato mixture to evenly distribute the fat. Also, be sure to drain your fried onions well on paper towels.
Conclusion: A Dish Worth Sharing
French Onion Funeral Potatoes are more than just a recipe—they’re a celebration of comfort, flavor, and togetherness. Whether you’re serving them at a holiday gathering, a potluck, or a simple family dinner, they’re guaranteed to bring smiles and second helpings.
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French Onion Funeral Potatoes
- Author: David
- Total Time: 1 hour 10 minutes
Description
A rich and creamy potato casserole infused with the flavors of French onion soup, topped with crispy homemade fried onions. This dish is a comforting crowd-pleaser, perfect for gatherings or as a hearty side.
Ingredients
For the potatoes:
- 32 oz frozen cubed hash browns, thawed
- ¼ cup (½ stick / 57 g) unsalted butter, melted
- 2 cups (226 g) sharp cheddar cheese, shredded
- 1½ cups (345 g) sour cream
For the sauce:
- ¼ cup (½ stick / 57 g) unsalted butter
- 1 small yellow onion, diced
- 2 teaspoons garlic, minced
- ¼ cup (31 g) all-purpose flour
- 1 teaspoon kosher salt
- ½ teaspoon black pepper
- ½ teaspoon cayenne pepper
- ½ teaspoon dried mustard
- ½ cup (120 g) chicken broth, room temperature
- ½ cup (122.5 g) whole milk, room temperature
For the fried onions:
- 2 large yellow onions, thinly sliced (about 4 cups)
- 4 cups (32 oz) vegetable oil
- ½ teaspoon kosher salt
Instructions
1️⃣ Preheat oven:
Preheat your oven to 350°F (175°C). Spray a 9×13-inch baking dish with nonstick spray.
2️⃣ Prepare the potato mixture:
In a large bowl, combine the hash browns, melted butter, shredded cheddar cheese, and sour cream. Mix well and set aside.
3️⃣ Make the sauce:
Heat ¼ cup butter in a medium non-stick skillet over medium heat. Add the diced onion and sauté until softened, about 3-5 minutes. Add the minced garlic and cook for another minute.
Stir in the flour, salt, black pepper, cayenne pepper, and dried mustard. Cook for 1 minute to toast the flour.
Gradually whisk in the chicken broth and milk. Cook, stirring constantly, until the sauce thickens and becomes smooth.
4️⃣ Assemble the casserole:
Pour the sauce into the potato mixture and stir until fully combined.
Transfer the mixture into the prepared baking dish and spread it out evenly.
5️⃣ Bake the casserole:
Bake for 45-50 minutes or until the casserole is bubbly and heated through.
6️⃣ Prepare the fried onions:
While the casserole is baking, heat the oil in a large saucepan over high heat until it reaches 350°F (175°C).
Working in batches, add about 1 cup of sliced onions to the hot oil. Fry, stirring occasionally, for 2-5 minutes until the onions turn pale golden brown.
Use a fine mesh strainer or slotted spoon to remove the onions and place them on a paper towel-lined baking sheet to drain. Sprinkle with kosher salt and toss to coat. Repeat with remaining onions.
7️⃣ Top and serve:
Once the casserole has finished baking, remove it from the oven. Sprinkle the fried onions evenly over the top.
Serve hot and enjoy the crispy, creamy goodness!
Notes
- Hashbrowns: Ensure the hash browns are fully thawed and patted dry to avoid excess moisture in the casserole.
- Fried onions: Homemade fried onions add a fresh, crispy touch, but you can substitute with store-bought crispy onions for convenience.
- Make-ahead option: Prepare the casserole (without baking or adding fried onions) the night before, refrigerate, and bake the next day.
- Prep Time: 20 minutes
- Cook Time: 50 minutes
Nutrition
- Serving Size: 8-10



