Easy French Onion Potato Bake Recipe – Cheesy Comfort Food Side Dish
This Easy French Onion Potato Bake Recipe is the ultimate cozy side dish. Thinly sliced potatoes are layered with caramelized onions, creamy sauce, and plenty of melted cheese, then baked until golden and bubbly. It’s simple to prepare, irresistibly flavorful, and pairs beautifully with roast meats, chicken, or even as a vegetarian main. Whether you’re cooking for a weeknight dinner or a holiday feast, this potato bake will be the star of the table.
Equipment
- Mandoline slicer or sharp knife
- Large skillet (for caramelizing onions)
- Mixing bowl
- 9x13-inch baking dish
- Aluminum foil
- Wooden spoon or spatula
Ingredients
- 2 lbs potatoes (Russet or Yukon Gold), thinly sliced
- 2 large onions, caramelized
- 1 packet French onion soup mix (or homemade blend)
- 1 cup heavy cream or half-and-half
- 1 cup chicken or vegetable broth
- 2 cups shredded Gruyère or mozzarella cheese
- 2 tbsp butter or olive oil
- 2 garlic cloves, minced
- 1 tsp fresh thyme or rosemary
- Salt & black pepper to taste
- Fresh parsley for garnish
Instructions
- Prep Potatoes: Slice potatoes evenly using a mandoline or sharp knife.
- Caramelize Onions: In a skillet, cook onions in butter or olive oil over medium heat until golden and sweet. Add garlic and herbs.
- Prepare Sauce: Mix cream, broth, and French onion soup mix until smooth.
- Layer Casserole: In a greased baking dish, layer potatoes, caramelized onions, sauce, and cheese. Repeat until all ingredients are used.
- Bake: Cover with foil and bake at 375°F (190°C) for 45 minutes. Remove foil, add extra cheese, and bake uncovered for 15–20 minutes until golden and bubbly.
- Rest & Serve: Let rest for 10 minutes before serving. Garnish with parsley.
Notes
- Variations: Try extra-cheesy with Gruyère, vegan with cashew cream, or spicy with chili flakes.
- Storage: Refrigerate in airtight container for 3–4 days. Freeze portions for up to 2 months.
- Reheating: Warm in oven at 350°F (175°C) for crispness. Avoid microwaving to preserve texture.
- Healthier Options: Use olive oil instead of butter, reduce cheese, and add spinach or mushrooms for fiber.
- Pairings: Perfect with roast chicken, beef, lamb, or a fresh salad.