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French Onion Potato Bake

French Onion Potato Bake

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Get ready to enjoy a warm and comforting dish with this French Onion Potato Bake! This creamy casserole combines layers of tender Yukon Gold potatoes with rich, caramelized onions and gooey cheeses, creating an indulgent experience that’s perfect for any occasion. Whether you’re hosting a family gathering or simply looking for an easy weeknight meal, this bake is sure to be a crowd-pleaser. With straightforward preparation steps and simple ingredients, you’ll have a delicious dinner on the table in no time. Plus, its make-ahead convenience makes it ideal for meal prep or entertaining. Trust me; once you try this dish, it will become a staple in your home.

Ingredients

Scale
  • 2 large yellow onions
  • 4 large Yukon Gold potatoes
  • 1 cup shredded Gruyère cheese (or Swiss, cheddar, or mozzarella)
  • ½ cup Parmesan cheese
  • 1 cup heavy cream or whole milk
  • ½ cup beef broth (or vegetable broth)
  • 2 tablespoons butter
  • 1 tablespoon olive oil
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ½ teaspoon garlic powder
  • ½ teaspoon dried thyme (or 1 teaspoon fresh thyme)
  • 1 tablespoon butter (for greasing)
  • Fresh thyme sprigs
  • Extra Parmesan cheese
  • Crispy fried onions (optional)

Instructions

  1. Sauté sliced onions in butter and olive oil over medium heat until caramelized (20-25 minutes).
  2. Slice Yukon Gold potatoes into ¼-inch rounds.
  3. Whisk together heavy cream, salt, black pepper, and fresh thyme leaves in a bowl.
  4. Preheat oven to 375°F (190°C) and grease a baking dish. Layer half the potatoes, then half the onions and cheese; pour half the creamy sauce. Repeat layers.
  5. Cover with foil and bake for 30 minutes; uncover, sprinkle extra Parmesan on top, and bake for another 15-20 minutes until golden brown.

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