French Onion Potatoes

Featured in Sides That Steal the Show.

This dish upgrades a classic with creamy, cheesy potatoes, a bold oniony sauce, and a fresh crispy topping for extra crunch.
A woman holding a vegetable in a kitchen.
Updated on Tue, 15 Apr 2025 20:54:13 GMT
A white dish of baked potatoes topped with golden, crispy onions next to a striped cloth and silver spoon. Pin it
A white dish of baked potatoes topped with golden, crispy onions next to a striped cloth and silver spoon. | cookwithtaste.com

Gotta tell you about my personal spin on homey food! These French Onion Funeral Potatoes have turned into my must-make dish when family comes over. I whipped them up for a winter Sunday meal last year, and would you believe it? My mom actually phoned the next day wanting the instructions - that never ever happens! Those crunchy fried onions on the top transform this dish from decent to mind-blowing, and that cheesy potato mixture underneath? It's like a warm hug in every spoonful.

What Makes This Dish Special

Forget your typical potato bake! I've grabbed those classic funeral potatoes we all knew growing up and given them a French onion upgrade. The mixture is smooth and decadent, and when you catch that perfect mouthful with the crunchy topping, it's simply wonderful. Even my food-suspicious nephew went back for more helpings last December!

Your Shopping List

  • Hash Browns: Always go for frozen cubed ones as they maintain their texture better throughout cooking.
  • Cheese: I can't recommend sharp cheddar enough - it brings such fantastic flavor!
  • Sour Cream: Don't skimp with low-fat versions - full fat makes everything taste better.
  • Sauce Ingredients: We'll create something wonderful using butter, onions, garlic, flour, broth, and milk.
  • For Those Crunchy Onions: Yellow onions work best when you cut them super thin.
  • Seasonings: You'll need salt, pepper, a tiny bit of cayenne for kick, and some dry mustard - every element counts!

Cooking Steps

The Potato Mix
Start by combining hash browns with melted butter, cheese, and sour cream. I grab my largest mixing bowl because spill cleanup isn't fun for anyone!
Creating The Sauce
This is where things get good. Soften those onions until they're sweet and tender, toss in some garlic (because why would you skip it?), then create your sauce. When it bubbles up and thickens nicely, dump it all over your potato mixture.
Baking Time
Transfer everything to your baking dish - I use my trusty 9x13 that's seen countless family gatherings. Stick it in the oven and let it work its magic.
Onion Prep
While that's cooking, you'll make those amazing crunchy onions! Watch them carefully as they'll burn in a flash. I usually make more than needed because they're so snackable.
Finishing Touch
Crown your hot bubbling casserole with those crunchy onions and watch how quickly everyone flocks to the table!

Make-Ahead Strategies

When things get hectic, here's a handy trick: you can prepare this beforehand! I often assemble it the evening before big gatherings. Just wait to add those crispy onions until you're ready to serve. You can even stick it in the freezer for a couple months, which works perfectly for unexpected guests or when you're just craving some comfort food without the fuss.

Tasty Variations

I sometimes get a bit fancy by mixing some Gruyère with the cheddar - so yummy! My sister loves throwing in some crumbled bacon (because honestly, bacon improves everything), and my buddy Lisa adds diced red peppers for a pop of color. And when you're rushed, those packaged crispy onions work too - I won't tell anyone!

Pro Pointers

After countless batches, I've picked up some useful know-how! Make sure to really drain those hash browns - nobody wants a soggy casserole. Warm up your milk and broth slightly - it'll make your sauce blend better. And please keep an eye on that oil temp when frying onions. Let's just say my smoke detector and I became very familiar during my learning curve!

The Secret To Its Deliciousness

There's something utterly wonderful about how the smooth, cheesy potatoes work with those crunchy onions. It's basically two comfort foods becoming one amazing creation. Whenever I bring this to gatherings, people literally hover around it and I always take home an empty dish!

What To Serve With It

This casserole needs friends on the table! It sits beautifully next to a festive turkey or weekend roast. I always include something green alongside to balance out all that wonderful richness. At our last Thanksgiving, this dish actually got more praise than the turkey - my brother-in-law pointed that out, not me!

Common Questions

People always want to know: Can you swap in shredded hash browns? Yes, but cubed ones stay firmer in the final dish. Can you use store-bought onions? Totally fine on busy days! How long do leftovers keep? They stay tasty for about 4 days - if they stick around that long in your home!

Why You'll Love It

You know what really makes this dish amazing? It pulls everyone together. Whether it's a big holiday meal or just a simple family dinner, folks naturally gather when this comes out hot from the oven. Something about that golden top and those crunchy onions just puts smiles on faces. And isn't that really why we cook in the first place?

A baked casserole topped with crispy fried onions, showcasing a creamy, cheesy filling. Pin it
A baked casserole topped with crispy fried onions, showcasing a creamy, cheesy filling. | cookwithtaste.com

Frequently Asked Questions

→ Can I replace homemade onions with pre-made ones?
Sure, store-bought crispy onions like French's work fine. Homemade ones just taste fresher and have better crunch.
→ Can I prepare this dish in advance?
Mix the potato base and oniony sauce ahead of time, but leave off the topping until you’re ready to serve. It keeps nicely in the fridge for up to a day before baking.
→ What’s the story behind the name?
It’s called funeral potatoes because it’s a common comfort food served at funeral gatherings in the Midwest and some other communities. It’s easy to make for a lot of people.
→ Can I swap frozen potatoes for fresh ones?
You can, but frozen ones save time. If you go fresh, shred them, cook slightly, and drain well before using.
→ How should I store leftovers?
Pop leftovers in an airtight container in the fridge for up to 3 days. The topping will lose crunch, so reheat it in the oven for the best taste.

French Onion Potatoes

A rich take on cheesy potato casserole with homemade crunchy onion topping and a savory French onion sauce.

Prep Time
20 Minutes
Cook Time
50 Minutes
Total Time
70 Minutes
By: Milly

Category: Side Dishes

Difficulty: Intermediate

Cuisine: American

Yield: 12 Servings (12 servings)

Dietary: Vegetarian

Ingredients

01 Thawed frozen hash browns (32 ounces, cubed).
02 Melted unsalted butter for potatoes (1/4 cup or 57g).
03 Shredded sharp cheddar (2 cups or 226g).
04 Sour cream (345g or 1 1/2 cups).
05 Melted unsalted butter for sauce (57g or 1/4 cup).
06 Small diced yellow onion.
07 Minced garlic (about 2 tsp).
08 All-purpose flour (31g or 1/4 cup).
09 Kosher salt (1 tsp).
10 Ground black pepper (1/2 tsp).
11 Cayenne pepper (1/2 tsp).
12 Dry mustard powder (1/2 tsp).
13 Room temp chicken broth (120g or 1/2 cup).
14 Whole milk at room temperature (122.5g or 1/2 cup).
15 Two large yellow onions, thinly sliced (makes about 4 cups).
16 Vegetable frying oil (4 cups).
17 Kosher salt for fried onions (1/2 tsp).

Instructions

Step 01

Set oven to 350°F. In a big bowl, mix thawed potatoes, melted butter, shredded cheddar, and sour cream together.

Step 02

Cook diced onions and garlic in butter. Stir in flour and seasonings, then whisk in milk and broth until it thickens up.

Step 03

Stir the sauce into the potato mixture, then spread everything into a buttered 9x13-inch dish.

Step 04

Let it cook for 45 to 50 minutes, or until the edges are bubbling.

Step 05

Heat oil to 350°F. Fry onion slices in smaller portions until crispy and golden, which takes 2-5 minutes. Drain off the oil and season with salt.

Step 06

Sprinkle the fried onions over the hot dish and dig in while it's warm.

Notes

  1. You can prep earlier, but add fried onions just before eating!
  2. Keep oil at 350°F for frying each batch of onions.

Tools You'll Need

  • Baking dish, 9x13 inches.
  • Large pot or pan.
  • Kitchen thermometer.
  • Strainer or slotted spoon.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy.
  • Includes gluten.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 529
  • Total Fat: 38 g
  • Total Carbohydrate: 35 g
  • Protein: 12 g