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French Onion Potato Bake Recipe – Easy Cheesy Casserole

French Onion Potato Bake Recipe – Easy Cheesy Casserole

Description

If you love French onion soup and cheesy potato casseroles, this Easy French Onion Potato Bake Recipe is the perfect combination of both!Imagine layers of tender potatoes, caramelized onions, and gooey melted cheese, all baked to golden perfection in a creamy, savory sauce.

This dish is a must-try for fans of French flavors, comfort food, and easy-to-make dinner recipes. Whether you’re preparing a cozy weeknight dinner or need a crowd-pleasing side dish, this French Onion Potato Bake will impress everyone at the table.

Let’s dive into the full recipe and learn how to make this irresistible dish at home!

Ingredients

Scale
  • 6 medium potatoes, thinly sliced (Russet or Yukon Gold)
  • 2 large yellow onions, thinly sliced
  • 2 tablespoons unsalted butter
  • 2 tablespoons olive oil
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • 2 tablespoons fresh thyme, chopped
  • 1 cup heavy cream
  • 2 cans French onion soup (or homemade)
  • 2 cups shredded Gruyère cheese (or Swiss cheese)
  • 1 cup shredded mozzarella cheese
  • ½ cup crispy fried onions (for topping)

Optional Ingredients & Substitutions

  • Swap Gruyère cheese for cheddar, Swiss, or fontina.
  • Use red potatoes instead of Russet for a slightly firmer texture.
  • Substitute French onion soup with beef broth + caramelized onions.
  • Add garlic powder or onion powder for extra depth of flavor.

Instructions

Step1: Preheat the Oven & Prepare Ingredients

  • Preheat your oven to 375°F (190°C).
  • Grease a 9×13-inch baking dish with butter or non-stick spray.
  • Thinly slice potatoes and onions (use a mandoline slicer for even slices).

Step2: Caramelize the Onions

  • In a large skillet, heat butter and olive oil over medium-low heat.
  • Add the sliced onions, sprinkle with salt, and cook slowly for 25-30 minutes, stirring occasionally, until they turn deep golden brown.
  • Stir in fresh thyme, then remove from heat and set aside.

Step3: Assemble the Bake

  • Arrange half of the sliced potatoes in the greased baking dish.
  • Spread half of the caramelized onions on top.
  • Pour one can of French onion soup and half the heavy cream over the layers.
  • Sprinkle half of the shredded Gruyère and mozzarella cheese on top.
  • Repeat the layers with the remaining potatoes, onions, soup, and cream.
  • Finish by sprinkling the remaining cheese on top.

Step4: Bake Until Golden Brown

  • Cover the dish with aluminum foil and bake for 45 minutes.
  • Remove the foil, top with crispy fried onions, and bake uncovered for another 15 minutes, or until the top is golden brown and bubbly.

Step5: Rest & Serve

  • Let the dish rest for 10 minutes before serving.
  • Garnish with fresh thyme or parsley, and serve warm.

Equipment

Notes

  • Use starchy potatoes like Russet or Yukon Gold for a creamy texture.
  • Slice potatoes evenly (about ⅛-inch thick) to ensure even cooking.
  • Slowly caramelize the onions over low heat for maximum sweetness.
  • Cover with foil for the first 45 minutes to prevent drying out.
  • Let the bake rest before cutting to allow flavors to meld together.

Find it online: https://fenrecipes.com/french-onion-potato-bake-recipe-easy-cheesy-casserole/