Experience the rich, savory flavors of French onion soup transformed into a delicious potato bake. These French Onion Potatoes combine tender sliced potatoes with sweet caramelized onions and melty Gruyère cheese for a dish that’s both comforting and elegant. Whether served as a side or a vegetarian main, this recipe is sure to satisfy.
Ingredients for French Onion Potatoes
- 4 large potatoes, thinly sliced
- 2 large onions, thinly sliced
- 1½ cups shredded Gruyère cheese
- 1 teaspoon salt
- 1 teaspoon fresh thyme leaves (or ½ teaspoon dried thyme)
- 2 tablespoons olive oil or butter
How to Make French Onion Potatoes: Step-by-Step Instructions
Start by preheating your oven to 400°F (200°C). Prepare the potatoes and onions by slicing them very thinly to ensure even cooking and a creamy texture in the finished dish.
Next, heat olive oil or butter in a large skillet over medium heat. Add the sliced onions and cook slowly, stirring occasionally, until they caramelize and turn golden brown. This process can take 15 to 20 minutes, but it’s crucial for developing the rich onion flavor that defines this dish.
Once your onions are caramelized, layer half of the sliced potatoes evenly in a greased baking dish. Spread the caramelized onions over the potatoes, then add the remaining potato slices on top.
Sprinkle the dish with salt and fresh thyme, distributing the seasoning evenly. Finally, cover the entire dish with the shredded Gruyère cheese, ensuring good coverage for a golden, bubbly topping.
Place the baking dish in the oven and bake for 30 to 40 minutes, or until the potatoes are tender when pierced with a fork, and the cheese is melted, golden, and bubbling.
Remove from the oven and allow the French Onion Potatoes to rest for 5 minutes before serving. This lets the layers settle for easier slicing and enhances the flavors.
Storage and Reheating Tips
Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven at 350°F (175°C) until warmed through, which helps maintain the crispy cheese topping. Avoid microwaving as it may make the potatoes soggy.
Expert Tips for Perfect French Onion Potatoes
For best results, use starchy potatoes like Russets or Yukon Golds to get a creamy texture after baking. Caramelize the onions slowly to avoid burning and develop that signature sweetness. Gruyère cheese melts beautifully, but you can substitute with Swiss cheese if needed.
Frequently Asked Questions (FAQs)
Can I prepare this dish ahead of time?
Yes, you can assemble the layers in the baking dish and refrigerate for up to 24 hours before baking. Allow the dish to come to room temperature before baking for even cooking.
Can I add other herbs or spices?
Absolutely! Rosemary, sage, or a pinch of nutmeg complement the flavors nicely.
Is this recipe vegetarian?
Yes, this dish contains no meat and makes a hearty vegetarian option.
Can I make it dairy-free?
For a dairy-free version, substitute butter with olive oil and use a plant-based cheese alternative.
Final Thoughts
French Onion Potatoes are a wonderful way to bring the classic flavors of French onion soup into a warm, cheesy, and satisfying dish. Whether you serve it alongside roasted meats or as a standalone vegetarian meal, it’s sure to be a crowd-pleaser. For more delicious and comforting recipes like this, visit our website and explore our wide variety of culinary inspirations.