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Delicious French onion potato bake topped with melted cheese and herbs

French Onion Potato Bake

Indulge in the rich flavors of French Onion Potato Bake, featuring creamy potatoes, caramelized onions, and melted cheese, perfect for any occasion.
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Prep Time 20 minutes
Cook Time 1 hour 15 minutes
Total Time 1 hour 35 minutes
Servings: 6 servings
Course: Main Course, Side Dish
Cuisine: French
Calories: 450
Ingredients Method Notes

Ingredients
  

For the caramelized onions
  • 2 large yellow onions, thinly sliced The sweet base of our bake.
  • 2 tablespoons butter For sautéing the onions.
  • 1 tablespoon olive oil Adds richness and flavor.
  • 1 teaspoon salt Enhances the ingredients.
  • 1/2 teaspoon black pepper Adds a touch of spice.
  • 1 teaspoon sugar (optional) Aids in caramelizing the onions.
For the potato layers
  • 4 large Yukon Gold potatoes, sliced ¼-inch thick The heart of the dish.
  • 1 tablespoon butter (for greasing) Keeps the bake from sticking.
For the creamy topping
  • 1 cup shredded Gruyère cheese For that gooey topping.
  • 1/2 cup Parmesan cheese, grated Adds a salty, nutty flavor.
  • 1 cup heavy cream or whole milk For creaminess.
  • 1/2 teaspoon salt Season the cream mixture.
  • 1/4 teaspoon black pepper For additional flavor.
  • 1 teaspoon fresh thyme leaves Freshens up the dish.
Optional garnishes and toppings
  • Fresh thyme sprigs Optional garnish.
  • Extra Parmesan cheese Optional, for serving.
  • Crispy fried onions (optional) For extra crunch!

Method
 

Caramelize the onions
  1. Melt butter and olive oil in a skillet over medium heat.
  2. Add the onions, salt, pepper, and sugar (if using).
  3. Cook, stirring occasionally, for about 15-20 minutes until golden brown.
Prepare the potatoes
  1. While onions cook, slice Yukon Gold potatoes into ¼-inch rounds.
Assemble the bake
  1. Grease a baking dish with butter.
  2. Layer half of the potato slices at the bottom.
  3. Add half of the caramelized onions, half of the Gruyère cheese, and half of the Parmesan cheese.
  4. Repeat the layers.
Bake the dish
  1. In a bowl, mix heavy cream, salt, pepper, and fresh thyme.
  2. Pour over the layered potatoes.
  3. Cover with foil and bake for 60 minutes.
  4. Remove foil and bake for an additional 15 minutes until the top is golden and bubbly.
Serve & enjoy
  1. Let the bake sit for a few minutes before serving.
  2. Top with fresh thyme sprigs and extra Parmesan, if desired.
  3. Optionally, sprinkle crispy fried onions on top.

Notes

For best results, caramelize onions slowly for enhanced flavor. Ensure even potato slicing for uniform cooking. Adjust seasoning in the cream to taste before pouring over layers.