French Onion Scalloped Potatoes
These French Onion Scalloped Potatoes are rich, creamy, and full of savory caramelized onion flavor. This easy homemade potato side dish tastes like classic French onion soup baked into tender layers of potatoes, cheddar cheese, and cream. This recipe is simple to prepare and creates an impressive side dish that feels cozy and special for both weeknight meals and holiday celebrations.
French Onion Scalloped Potatoes
This potato dish blends the familiar comfort of cheesy scalloped potatoes with the irresistible savoriness of caramelized onions. Slow-cooked onions provide a rich sweetness that balances the layers of tender potatoes and creamy sauce. Every element comes together in the oven for a crisp golden top and a soft and creamy center that makes this recipe a true crowd pleaser.
Ingredients Needed to Make French Onion Scalloped Potatoes~
Caramelized Onions~
- 2 white onions, thinly sliced
- 2 tbsp of Butter
- 1/2 tsp of salt
- 1/2 tsp of white sugar
- 4 cloves of garlic, minced
- 1/4 cup of white wine
- 2 tsp of Beef bouillon paste
- 1/2 tsp of fresh or dried thyme
- 1/2 tsp of Worcestershire sauce
Scalloped Potatoes~
- 6 russet potatoes, peeled and thinly sliced
- 1 cup of heavy cream
- 1/2 cup milk
- 1 cup of sharp cheddar cheese
- 1/3 cup of grated parm
- Salt and pepper to taste
Notes for Success~
✔️ Use a mandoline for evenly thin potato slices, which helps the dish cook more evenly.
✔️ Take your time caramelizing the onions. Slow cooking builds the deep savory flavor that makes this recipe shine.
✔️ Cover the dish with foil halfway through baking if the top is browning too quickly.
✔️ Let the finished potatoes rest; this helps the creamy layers set for clean and easy serving. Store tightly covered in the refrigerator for up to three days.
🍽️ How to Serve French Onion Scalloped Potatoes
- As a Main Dish: Serve with a Crisp Greek Salad for a fresh and balanced meal. Or make Roasted Spiced Carrots to create a cozy vegetarian dinner.
- As a Side for Weeknight Dinners: Pair with Juicy Roasted Chicken Thighs, Crispy Chicken Cutlets, or flavorful grilled steak.
- For Holiday Meals: Add to your Thanksgiving or Christmas table as a crowd-pleasing potato option. Serve alongside glazed ham or herb-roasted Chicken.
- Make Ahead: Leftovers reheat beautifully. Warm them in the oven or microwave for a simple lunch or dinner.
If you make these French Onion Scalloped Potatoes, be sure to leave a comment and/or give this recipe a rating! Above all, I love to hear from you guys and always do my best to respond to each and every comment. And, of course, if you do make this recipe, don’t forget to tag me on Instagram or TikTok! I love seeing the recipes you make!
French Onion Scalloped Potatoes
Ingredients
Caramelized Onions
- 2 onions thinly sliced
- 2 tbsp butter
- 1/2 tsp salt
- 1/2 tsp white sugar
- 4 cloves garlic minced
- 1/4 cup White wine or broth
- 2 tsp beef bouillon paste
- 1/2 tsp fresh or dried thyme
- 1/2 tsp Worcestershire sauce
Scalloped Potatoes
- 6 russet potatoes peeled and thinly sliced
- 1 cup heavy cream
- 1/2 cup Milk
- 1 cup sharp cheddar cheese
- 1/3 cup grated parmesan
- Salt and pepper to taste
Instructions
- Preheat your oven to 375 degrees and lightly grease a 9×13-inch baking dish.
- Prepare the caramelized onions. Melt the butter in a large skillet over medium-low heat. Add the sliced onions, salt, and sugar. Cook slowly until the onions turn golden and soft. About 25- 30 minutes.2 onions thinly sliced, 2 tbsp butter, 1/2 tsp salt, 1/2 tsp white sugar
- Add the garlic and cook until fragrant. Pour in the white wine or broth and simmer until mostly reduced. Stir in the beef bouillon paste, thyme, and Worcestershire sauce. Cook until everything is combined and the mixture is thick and glossy.4 cloves garlic minced, 1/4 cup White wine or broth, 2 tsp beef bouillon paste, 1/2 tsp fresh or dried thyme, 1/2 tsp Worcestershire sauce
- Arrange a layer of thinly sliced potatoes in the baking dish. Season with salt and pepper. Spoon 1/3 of the caramelized onions over the potatoes and sprinkle with 1/3 cup of the cheddar cheese and 2 tbsp of grated parmesan cheese.6 russet potatoes peeled and thinly sliced, 1 cup sharp cheddar cheese, Salt and pepper to taste, 1/3 cup grated parmesan
- Repeat the layers until all potatoes and onions are used. Pour the heavy cream and milk evenly over the top. Finish with the remaining grated parmesan.1 cup heavy cream, 1/2 cup Milk
- Bake uncovered for about 1 hour and 15 minutes or until the top is golden and the potatoes are tender in the center. Let the dish rest for a few minutes before serving.
Notes
✔️ Take your time caramelizing the onions. Slow cooking builds the deep savory flavor that makes this recipe shine.
✔️ Cover the dish with foil halfway through baking if the top is browning too quickly.
✔️ Let the finished potatoes rest. This helps the creamy layers set for clean and easy serving.
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