French Onion Soup Stuffed Potatoes

Imagine the rich, comforting aroma of French onion soup, with its savory caramelized onions and warm beef broth, combined with the hearty, satisfying texture of baked potatoes. That’s precisely what you get with this French Onion Soup Stuffed Potatoes recipe—a fusion of two beloved classics into one irresistibly delicious dish. This recipe transforms the classic French onion soup into a hearty, filling meal by stuffing it into tender, perfectly baked russet potatoes and topping it off with gooey melted cheese.

I first encountered this mouthwatering dish during a cozy dinner party at a friend’s house. The moment I took a bite, I was hooked. The combination of creamy, savory French onion soup nestled inside a fluffy baked potato was nothing short of culinary magic. I decided then that this would become a staple in my recipe repertoire. The versatility of this dish, along with its blend of flavors, makes it perfect for a casual family dinner, a comforting meal on a chilly evening, or even a show-stopping side dish for special occasions.

Whether you’re an experienced cook or a kitchen novice, this recipe offers a unique and delectable way to enjoy French onion soup. It’s a simple yet sophisticated dish that’s sure to impress.

Ingredients
For the Potatoes
4 large russet potatoes

1 tablespoon avocado oil (or canola oil or grapeseed oil)

For the French Onion Soup
4 tablespoons salted butter (divided)

1 large yellow or white onion, thinly sliced

1/2 teaspoon coarse kosher sea salt

1/2 teaspoon granulated sugar

1/4 teaspoon ground black pepper

1 teaspoon freshly minced garlic (about 2 cloves)

1 can (14 oz) beef stock

1 teaspoon freshly minced thyme

For the Topping
4 slices Gruyère or Swiss cheese

Instructions
Preparing the Potatoes
Preheat the Oven:

Start by preheating your oven to 450°F (230°C). This high temperature will help achieve a crispy skin on the potatoes, which provides a great contrast to the creamy soup filling.

Prepare the Potatoes:

Rub 4 large russet potatoes with 1 tablespoon of avocado oil. This helps to crisp the skin and adds flavor. Using a fork, pierce each potato six times on the top. This allows steam to escape during baking and prevents the potatoes from bursting in the oven.

Bake the Potatoes:

Place the potatoes on a foil-lined baking sheet. Bake in the preheated oven for 45 minutes to 1 hour. The exact time will depend on the size of your potatoes. They are done when the internal temperature reaches 200°F (93°C), and they are tender when pierced with a fork.

Making the French Onion Soup
Caramelize the Onions:

While the potatoes are baking, melt 2 tablespoons of salted butter in a medium skillet over medium-low heat. Add the thinly sliced onion, sprinkle with 1/2 teaspoon of coarse kosher salt, and 1/2 teaspoon of granulated sugar. The salt helps to draw out moisture from the onions, and the sugar aids in caramelization.

Cook the onions slowly, stirring frequently to prevent burning, until they become deeply caramelized. This process takes about 30 minutes. Patience is key here; the slow cooking brings out the natural sweetness and depth of flavor in the onions.

Add Garlic and Seasonings:

Once the onions are caramelized, add 1/4 teaspoon of ground black pepper and 1 teaspoon of freshly minced garlic. Cook for an additional 2 minutes until the garlic becomes fragrant.

Add Broth and Thyme:

Pour in 14 ounces of beef stock and 1 teaspoon of freshly minced thyme. Stir to combine. Increase the heat to medium and let the soup simmer for 15 minutes. This allows the flavors to meld together and the soup to reduce slightly, enhancing its richness.

Assembling the Stuffed Potatoes
Prepare the Potatoes for Stuffing:

Once the potatoes are baked, remove them from the oven. Cut each potato down the center lengthwise. Gently press the ends together to open up the potato. Be careful as the potatoes will be very hot.

Add Butter:

Divide the remaining 2 tablespoons of butter into 4 pieces. Place a piece of butter into the center of each open potato. The heat from the potatoes will melt the butter, adding extra richness to the final dish.

Stuff the Potatoes:

Carefully ladle the French onion soup into each potato, dividing it evenly between the four potatoes. Pour slowly and allow the soup to soak into the potato flesh. You might need to go back and forth to ensure that as much of the liquid is absorbed as possible.

Add the Cheese:

Place a slice of Gruyère or Swiss cheese over the top of each stuffed potato. The cheese will melt and create a delicious, gooey topping.

Broil for Perfection:

Return the stuffed potatoes to the oven and broil until the cheese is golden brown and bubbly. This typically takes about 2-3 minutes, but keep a close eye on them to avoid burning.

Serving
Serve and Enjoy:

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