Description

A comforting and flavorful potato bake inspired by classic French onion soup. Tender potatoes, deeply caramelized onions, and melted Gruyère cheese create a dish that’s both hearty and delicious. Perfect as a main or side.

Ingredients

Scale

2 pounds Yukon Gold potatoes, scrubbed and thinly sliced (about 1/8-inch thick)
2 pounds yellow onions, thinly sliced
4 tablespoons unsalted butter
1 teaspoon salt, plus more to taste
1/2 teaspoon black pepper, plus more to taste
2 cloves garlic, minced
1/2 cup dry white wine (optional)
2 cups beef broth (low-sodium)
1 tablespoon Worcestershire sauce
1 teaspoon fresh thyme leaves (or 1/2 teaspoon dried)
1 1/2 cups shredded Gruyère cheese, divided
1/2 cup shredded provolone cheese (optional)
1/4 cup chopped fresh parsley, for garnish (optional)

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Instructions

1. Melt butter in a large skillet over medium-low heat. Add onions, 1 tsp salt, and 1/2 tsp pepper. Cook, stirring occasionally, for 45-60 minutes until deeply caramelized.
2. Add garlic and cook for 1 minute. If using wine, deglaze the pan, scraping up browned bits, and reduce by half (3-5 minutes).
3. Pour in beef broth, add Worcestershire sauce and thyme. Simmer for 5-10 minutes, tasting and adjusting seasoning.
4. Preheat oven to 375°F (190°C). Grease a 9×13 inch baking dish.
5. Layer half the potatoes in the dish, spoon half the onion mixture over them, and sprinkle with 1/2 cup Gruyère and provolone (if using).
6. Layer the remaining potatoes, then the rest of the onion mixture.
7. Cover dish tightly with foil and bake for 45-55 minutes, or until potatoes are tender.
8. Remove foil, sprinkle remaining 1 cup Gruyère over the top.
9. Bake uncovered for 10-15 minutes more until cheese is melted and golden brown. Broil for the last 1-2 minutes if desired, watching carefully.
10. Let rest for 10-15 minutes before serving. Garnish with parsley if desired.

Notes

Store leftovers tightly covered in the refrigerator for up to 3-4 days. Reheat in the oven at 350°F (175°C) until heated through. Individual portions can be microwaved. Leftovers can be diced and used in hashes or potato cakes.

Prep Time: 25 minutes
Cook Time: 1 hour 30 minutes
Category: Main Dish, Side Dish, Casserole
Method: Baked
Cuisine: American

Nutrition

Serving Size: 1 serving
Calories: 400
Sugar: 8g
Sodium: 600mg
Fat: 20g
Carbohydrates: 40g
Fiber: 4g
Protein: 15g