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Easy French Onion Potato Bake

This Easy French Onion Potato Bake is a delightful dish that combines caramelized onions with creamy, cheesy layers of tender potatoes, perfect for family gatherings or a cozy weeknight dinner.
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Prep Time 15 minutes
Cook Time 1 hour 5 minutes
Total Time 1 hour 20 minutes
Servings: 6 servings
Course: Casserole, Main Course
Cuisine: Comfort Food, French
Calories: 375
Ingredients Method Notes

Ingredients
  

Main Ingredients
  • 2 lbs russet potatoes, peeled and thinly sliced
  • 2 large yellow onions, thinly sliced for sweet caramelized flavor
  • 4 tablespoons unsalted butter for sautéing
  • 1 cup heavy cream adds creaminess
  • 1 cup shredded Gruyère cheese provides nutty flavor
  • 1 cup shredded mozzarella cheese for melting quality
  • 1 tablespoon fresh thyme, chopped to elevate flavor
  • Salt and black pepper, to taste for seasoning

Method
 

Preparation
  1. Preheat your oven to 375°F (190°C). Peel and thinly slice the russet potatoes and yellow onions.
Caramelizing Onions
  1. In a large skillet, melt the unsalted butter over medium heat. Add the sliced onions and sauté until golden and caramelized, about 15-20 minutes.
Layering Ingredients
  1. In a greased baking dish, layer half of the sliced potatoes, season with salt and pepper, then add half of the caramelized onions, half of the heavy cream, and half of the cheeses. Repeat the layers, finishing with a cheese layer on top.
Baking
  1. Cover with foil and bake for about 45 minutes. Then remove the foil and bake for an additional 15-20 minutes until the cheese is bubbling and golden.
Serving
  1. Let the dish rest for about 10-15 minutes before serving.

Notes

For extra flavor, consider adding cooked, crumbled bacon or sautéed mushrooms. Serve with a green salad or alongside a steak.