Description

This delicious French Onion Potato Bake combines tender potatoes with deeply caramelized onions and a rich cheese topping for a truly comforting side dish or light meal. Inspired by ‘An Organized Chaos’.

Ingredients

Scale

2 pounds Yukon Gold potatoes, thinly sliced (about 1/8 inch thick)
4 large yellow onions, thinly sliced
4 tablespoons unsalted butter
2 tablespoons olive oil
1 teaspoon sugar (optional, for faster caramelization)
1 ½ teaspoons salt, divided
½ teaspoon black pepper, divided
1 ½ cups beef broth (or vegetable broth for vegetarian option)
½ cup heavy cream
1 clove garlic, minced
1 teaspoon fresh thyme leaves (or ½ teaspoon dried thyme)
4 ounces Gruyère cheese, shredded
2 ounces Parmesan cheese, grated
Fresh parsley, chopped, for garnish (optional)

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Instructions

1. Caramelize the Onions: In a large, heavy-bottomed skillet or Dutch oven, melt the butter and olive oil over medium heat. Add the sliced onions, sugar (if using), ½ teaspoon salt, and ¼ teaspoon pepper. Cook, stirring occasionally, for 30-45 minutes, or until the onions are deeply golden brown and softened.
2. Prepare the Potatoes: Peel and thinly slice the potatoes to an even thickness of about 1/8 inch.
3. Preheat Oven and Prepare Baking Dish: Preheat oven to 375°F (190°C). Grease a 9×13 inch baking dish.
4. Make the Broth Mixture: In a medium bowl, whisk together the beef broth, heavy cream, minced garlic, thyme, remaining 1 teaspoon salt, and remaining ¼ teaspoon pepper.
5. Assemble the Bake: Spread half the caramelized onions in the baking dish, then layer half the sliced potatoes. Spread remaining onions over potatoes, then top with remaining sliced potatoes.
6. Pour the Liquid: Pour the broth and cream mixture evenly over the potatoes.
7. Cover and Bake: Cover dish tightly with aluminum foil and bake for 45 minutes.
8. Add Cheese and Bake Uncovered: Remove foil. Sprinkle Gruyère and Parmesan cheese evenly over the top. Bake uncovered for another 20-25 minutes, until potatoes are tender and cheese is melted and golden.
9. Rest and Serve: Let rest for 10-15 minutes before serving. Garnish with parsley if desired.

Notes

Store cooled leftovers in an airtight container in the refrigerator for up to 3-4 days. Reheat in a 350°F (175°C) oven, covered with foil, until heated through. Individual portions can be microwaved.

Prep Time: 30 minutes
Cook Time: 70 minutes
Category: Side Dish
Method: Baking
Cuisine: American

Nutrition

Serving Size: 1 serving
Calories: 480
Sugar: 9g
Sodium: 850mg
Fat: 35g
Carbohydrates: 35g
Fiber: 5g
Protein: 16g