There’s something magic about crispy onions meeting creamy potatoes under a blanket of melted cheese. French Onion Funeral Potatoes take everything you love about the classic comfort side and give it that deep, savory flavor we all crave when we want something cozy but not too heavy.
After a long day, I need dinner to be comforting but not heavyand this hits that sweet spot every time. I started making this back in spring of 2019 when I was testing potato casseroles for the blog, and the moment I tasted that caramelized onion layer with the golden topping, I knew it was a keeper. Over ten years of recipe testing has taught me that simple combinations often win, and this one’s been requested at every potluck since.
Joe Rooney
French Onion Funeral Potatoes Easy Comforting Dinner
Enjoy a hearty twist on classic cheesy potato casserole with this French Onion Funeral Potatoes recipe. Perfect for an easy dinner or a comforting weeknight meal, it combines creamy potatoes with a rich homemade onion sauce and crispy fried onions for a delightful family dinner or comforting side dish.
Set your oven to 350°F and grease a 9×13-inch casserole dish with nonstick spray.
In a large mixing bowl, stir together thawed hash browns, melted butter, shredded cheddar, and sour cream until well combined.
Heat 1/4 cup butter in a medium skillet over medium heat until melted.
Add the diced onion and cook until it softens, about 3 to 5 minutes, then stir in the minced garlic and cook for an additional minute.
Sprinkle in the flour, salt, black pepper, cayenne, and dried mustard, stirring for another minute to cook the flour.
Gradually whisk in the milk and chicken broth, keep whisking until the sauce thickens.
Pour this creamy sauce into the potato mixture and mix everything thoroughly before transferring it to the prepared baking dish.
Bake in the preheated oven for 45 to 50 minutes until the casserole bubbles and is heated through.
While baking, prepare a baking sheet with two layers of paper towels to drain fried onions.
Heat vegetable oil in a large saucepan to 350°F over high heat.
Fry the sliced onions in batches by adding about 1 cup of onions to the hot oil. Stir occasionally, cooking for 2 to 5 minutes until they turn golden and crisp.
Remove the fried onions with a slotted spoon or fine mesh strainer and spread them evenly on the paper towels. Repeat for all onion batches, maintaining oil temperature.
Sprinkle the fried onions with kosher salt and toss gently to coat.
Once the potato casserole is done baking, take it out of the oven and evenly cover the top with the freshly fried onions.
Serve the casserole hot and enjoy a comforting family favorite.
Notes
For best results, ensure the hash browns are fully thawed before mixing. The fried onion topping can be prepared ahead and stored in an airtight container. This dish pairs well with a simple green salad for a complete meal.
Why You’ll Love This Dish
This is the casserole that brings together everything you crave on a busy weeknightcheesy, savory, and topped with crispy homemade fried onions that taste nothing like the canned stuff. It’s comforting without feeling heavy, and honestly, it’s my go-to when I’m tired and still want dinner to feel like dinner.
Restaurant flavor at home: That French onion viberich, savory, with caramelized depthmakes this feel special even when you’re in your sweatpants.
Feeds a crowd: Perfect for potlucks, church suppers, or Sunday family dinners. Everyone goes back for seconds.
Homemade crispy topping: Those golden fried onions are the star. Once you make them fresh, you won’t go back.
Make-ahead friendly: Assemble the casserole earlier in the day, then bake and top with onions right before serving.
Key Ingredients You’ll Need
Everything here is easy to find at any grocery store. The magic comes from layering simple ingredients into something that tastes way more complicated than it actually is.
Frozen hash browns: Thaw them first so they bake evenly. No need to drainthey’ll soak up all that creamy sauce.
Sharp cheddar cheese: Shred it yourself for the best melt. Pre-shredded works, but fresh tastes richer.
Sour cream: Adds tang and keeps everything moist. Don’t skip it.
Yellow onions: You’ll use both diced onions in the sauce and thinly sliced onions for frying. They bring all the savory depth.
Chicken broth and whole milk: These create the creamy, flavorful sauce that coats every potato cube.
Vegetable oil: For frying the onions. You need enough to cover them while they crisp up.
How to Make French Onion Funeral Potatoes
The process is simple: mix your creamy potato base, make a quick stovetop sauce, bake everything together, then top with crispy fried onions. The sauce thickens beautifully, and those onions add the perfect crunch.
Step
What to Do
1. Prep the potato base
Mix thawed hash browns, melted butter, shredded cheddar, and sour cream in a large bowl.
2. Make the sauce
Sauté diced onions and garlic in butter, stir in flour and spices, then whisk in milk and chicken broth until thickened.
3. Combine and bake
Pour sauce into potato mixture, mix well, transfer to a greased 9×13-inch dish, and bake at 350°F for 45-50 minutes.
4. Fry the onions
While casserole bakes, fry thinly sliced onions in batches at 350°F until golden. Drain and salt them.
5. Top and serve
Sprinkle crispy onions over the hot casserole right before serving.
Pro Tip: Keep your oil at a steady 350°F. If it’s too cool, the onions will soak up grease instead of crisping. If it’s too hot, they’ll burn before they turn golden.
Swaps and Tweaks
This recipe is flexible. You can adjust based on what’s in your fridge or what your family prefers.
Ingredient
Swap Option
Sharp cheddar cheese
Use Gruyère or Swiss for a more authentic French onion flavor
Sour cream
Greek yogurt works, but sour cream has the best tang
Chicken broth
Vegetable broth or beef broth both work great
Whole milk
2% milk is fine; avoid skimit won’t thicken as well
Homemade fried onions
In a pinch, use store-bought crispy onions, but fresh is SO much better
Serving and Storage Tips
Serve this straight from the oven with the onions piled on top. It pairs beautifully with roasted chicken, grilled steak, or a simple green salad. Leftovers reheat well, though the onions lose a little crunch.
Store: Keep leftovers in an airtight container in the fridge for up to 3 days.
Reheat: Warm individual portions in the microwave or reheat the whole dish covered in a 350°F oven for 15-20 minutes.
Make ahead: Assemble the casserole (without baking) up to 24 hours in advance. Cover and refrigerate, then bake when ready. Fry the onions fresh just before serving.
Note: The fried onions are best added right before serving. If you store them on top of the casserole, they’ll get soggy.
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FAQs ( French Onion Funeral Potatoes )
Can I make this dish ahead of time?
Yes, you can assemble this casserole up to 24 hours in advance and refrigerate covered. Add an extra 10-15 minutes to the baking time if cooking straight from the fridge. The flavors actually develop nicely when prepared ahead.
What type of potatoes work best?
Russet potatoes are ideal because they hold their shape well and absorb the creamy onion flavors beautifully. Yukon Gold also works wonderfully for a creamier texture. Avoid waxy potatoes like red potatoes as they don’t absorb flavors as well.
How do I prevent the onions from burning?
Cook the onions low and slow over medium-low heat, stirring frequently. If they start browning too quickly, add a splash of broth or water. Properly caramelized onions take 20-30 minutes and should be golden brown, not dark.
Can I freeze leftover portions?
This recipe freezes well for up to 3 months when stored in airtight containers. Thaw overnight in the refrigerator and reheat at 350F for 20-25 minutes. The texture may be slightly softer after freezing but still delicious.
What can I substitute for heavy cream?
Half-and-half works well for a lighter version, though the sauce will be thinner. For dairy-free options, try full-fat coconut milk or cashew cream. Avoid low-fat dairy substitutes as they may curdle during baking.
Ready to Serve?
You’ll love how French Onion Funeral Potatoes come togethercreamy, savory, and topped with those golden onions that crackle under your fork. The whole dish smells like Sunday supper, even on a Tuesday night. It’s one of those recipes that just works, every single time.
If you want a little extra richness, stir in a handful of chopped fresh thyme with the onionsit adds that herby French touch. You can also swap half the cheddar for Gruyère if you’re feeling fancy. Leftovers reheat beautifully for lunch the next day, though I recommend keeping extra fried onions in a separate container so they stay crispy.
I’d love to hear how this one turns out in your kitchentag me if you share a photo, or let me know in the comments if this reminds you of a casserole from your childhood. Save this recipe for the next potluck or family gathering, or just make it on a night when you need something warm and easy that still feels like home.
