French Onion Potato Bake
If you’re looking for a comforting dish that brings everyone around the table, you’ve found it in this French Onion Potato Bake. This recipe is a beloved family favorite of mine, perfect for busy weeknights or cozy gatherings with friends. The layers of creamy potatoes mingled with sweet caramelized onions and gooey cheese make this bake not just a meal but an experience that warms the heart.
What I love most about this dish is its simplicity. With just a handful of wholesome ingredients, you can create something truly special that everyone will enjoy. Whether you’re preparing dinner after a long day or impressing guests at your next gathering, this French Onion Potato Bake is sure to shine.
Why You’ll Love This Recipe
- Easy Preparation: This dish requires minimal hands-on time, making it perfect for busy evenings.
 - Family-Friendly Appeal: The rich flavors and cheesy goodness are a hit with both kids and adults.
 - Make-Ahead Convenience: You can prepare it in advance and simply pop it in the oven when you’re ready to eat.
 - Delicious Flavor: The combination of caramelized onions and creamy potatoes creates a comforting taste that feels like a warm hug.
 - Customizable Options: You can easily tweak ingredients to suit your family’s preferences.
 

Ingredients You’ll Need
Let’s gather our simple, wholesome ingredients! This French Onion Potato Bake uses items you likely have on hand, making it easy to whip up anytime.
For the Caramelized Onions
- 2 large yellow onions, thinly sliced
 - 2 tablespoons butter
 - 1 tablespoon olive oil
 - 1 teaspoon salt
 - ½ teaspoon black pepper
 - 1 teaspoon sugar (optional)
 - ½ teaspoon garlic powder
 - ½ teaspoon dried thyme (or 1 teaspoon fresh thyme)
 - ½ cup beef broth (or vegetable broth for a vegetarian version)
 
For the Potatoes and Cheese Layer
- 4 large Yukon Gold potatoes, sliced ¼-inch thick
 - 1 tablespoon butter (for greasing)
 - 1 cup shredded Gruyère cheese (or Swiss, cheddar, or mozzarella)
 - ½ cup Parmesan cheese, grated
 - 1 cup heavy cream or whole milk
 - ½ teaspoon salt
 - ¼ teaspoon black pepper
 - 1 teaspoon fresh thyme leaves
 - Fresh thyme sprigs (for garnish)
 - Extra Parmesan cheese (for topping)
 - Crispy fried onions (optional, for extra crunch!)
 
Variations
Feel free to get creative with this recipe! It’s flexible enough to accommodate different tastes and dietary needs.
- Add Some Veggies: Toss in some spinach or kale for added nutrition and color.
 - Change Up the Cheese: Switch out Gruyère for feta or goat cheese for a tangy twist.
 - Make It Herbaceous: Mix in some chopped fresh herbs like rosemary or parsley for extra flavor.
 - Bulk It Up: Add cooked chicken or lentils for a heartier meal option.
 
How to Make French Onion Potato Bake
Step 1: Prepare the Onions
Start by melting the butter and olive oil together in a large skillet over medium heat. Add the thinly sliced onions along with salt, pepper, and sugar if you’re using it. Cook them slowly until they become golden brown and caramelized. This process brings out their natural sweetness—trust me, it’s worth the time!
Step 2: Layer the Ingredients
Once your onions are beautifully caramelized, it’s time to assemble! Grease your baking dish with butter. Layer half of the sliced Yukon Gold potatoes at the bottom. Then spread half of the caramelized onions on top. Sprinkle half of both cheeses over this layer before repeating with another layer of potatoes, onions, and cheeses.
Step 3: Pour in the Creamy Mixture
In a separate bowl, whisk together heavy cream (or milk), salt, pepper, and thyme leaves. Pour this creamy goodness evenly over all those lovely layers in your baking dish. This will ensure every bite is indulgently creamy!
Step 4: Bake It Up!
Cover your baking dish with aluminum foil and place it in a preheated oven at 375°F (190°C). Bake for about 45 minutes until everything is tender. After that, remove the foil and sprinkle extra Parmesan on top if desired. Pop it back in the oven uncovered for another 15-20 minutes until golden brown and bubbling.
Step 5: Serve & Enjoy!
Once your French Onion Potato Bake is out of the oven, let it sit for a few minutes before serving. Garnish with fresh thyme sprigs if you like! Dish up generous portions and watch as everyone digs in eagerly—this bake is sure to become a go-to favorite!
Pro Tips for Making French Onion Potato Bake
Creating the perfect French Onion Potato Bake is a delightful experience, and these tips will help you achieve that rich, savory flavor everyone will love.
- Slice onions evenly: Ensuring your onions are sliced uniformly allows them to caramelize at the same rate, resulting in a consistent flavor and texture throughout the dish.
 - Low and slow for caramelization: Cooking the onions on low heat for a longer period enhances their sweetness and depth of flavor. It’s worth the wait!
 - Use a mix of cheeses: Combining different types of cheese not only adds complexity to the dish but also enhances creaminess and richness.
 - Let it rest before serving: Allowing the bake to sit for about 10 minutes after pulling it from the oven helps it set up nicely, making it easier to serve without falling apart.
 - Experiment with herbs: Fresh or dried herbs can elevate your dish. Don’t hesitate to try other herbs like rosemary or oregano for a unique twist.
 
How to Serve French Onion Potato Bake
Serving your French Onion Potato Bake can be as creative as you wish! Presenting this dish in an appealing way enhances the dining experience and invites everyone to dig in.
Garnishes
- Fresh thyme sprigs: A few sprigs on top not only look beautiful but add a fragrant aroma that will delight your guests.
 - Extra Parmesan cheese: A light sprinkle of freshly grated Parmesan right before serving adds an extra layer of flavor and a touch of elegance.
 - Crispy fried onions: These provide a delightful crunch that contrasts beautifully with the creamy layers beneath.
 
Side Dishes
- Simple Green Salad: A refreshing salad with mixed greens, cherry tomatoes, and a light vinaigrette complements the richness of the bake beautifully, providing balance on the plate.
 - Steamed Broccoli: This nutritious side adds vibrant color and offers a nice crunch. The mild flavor pairs wonderfully with the savory notes of the potato bake.
 - Roasted Brussels Sprouts: Tossed in olive oil and seasoned simply with salt, these sprouts add an earthy flavor that elevates your meal.
 - Garlic Bread: A warm, crusty garlic bread is perfect for scooping up every last bite of this creamy delight. It’s also great for soaking up any leftover sauce!
 
With these serving suggestions and pro tips, your French Onion Potato Bake is sure to impress family and friends alike! Happy cooking!

Make Ahead and Storage
This French Onion Potato Bake is a fantastic option for meal prep! You can prepare it in advance, making weeknight dinners a breeze. Here’s how to store and reheat your delicious creation.
Storing Leftovers
- Store leftovers in an airtight container in the refrigerator.
 - Enjoy within 3-4 days for the best taste and texture.
 - Let the bake cool completely before sealing it in to avoid moisture buildup.
 
Freezing
- To freeze, allow the dish to cool completely after baking.
 - Wrap the entire dish tightly with plastic wrap and then aluminum foil for added protection.
 - It can be frozen for up to 2 months. Label it with the date for easy tracking!
 
Reheating
- For best results, reheat in the oven at 350°F (175°C) until warmed through, about 20-25 minutes.
 - If you’re short on time, you can microwave individual portions on medium power until hot.
 - Add a sprinkle of extra cheese or crispy fried onions on top before reheating for extra flavor!
 
FAQs
Here are some common questions about making a French Onion Potato Bake.
Can I use different types of cheese for the French Onion Potato Bake?
Absolutely! While Gruyère is traditional, feel free to experiment with Swiss, cheddar, or even mozzarella. Each will bring its unique flavor profile to your dish!
How long does it take to bake the French Onion Potato Bake?
Typically, it takes about 1 hour to bake at 350°F (175°C). Keep an eye on it towards the end; you’re looking for a bubbly, golden top that signifies it’s ready to enjoy!
Can I make this French Onion Potato Bake vegetarian?
Yes! Simply substitute beef broth with vegetable broth. The flavors will still be rich and satisfying without any meat.
What should I serve with my French Onion Potato Bake?
This hearty dish pairs wonderfully with a simple green salad or roasted vegetables. A light soup could also complement it nicely if you’re looking for a cozy meal!
Final Thoughts
I hope you find joy in making this French Onion Potato Bake as much as I do! It’s not just a meal; it’s comfort food that brings warmth and happiness to your dining table. Whether it’s for a cozy family dinner or meal prepping for the week ahead, this dish is sure to impress. Enjoy every layer of flavor and don’t hesitate to share your experiences—I’d love to hear how it turns out for you!
French Onion Potato Bake
Savor the comforting essence of home with this French Onion Potato Bake, a dish that beautifully blends creamy Yukon Gold potatoes with rich caramelized onions and melted cheese. Perfect for weeknight dinners or special gatherings, this hearty casserole is simple to prepare, making it ideal for both novice cooks and seasoned chefs alike. Each bite is a warm embrace of flavors that will delight your family and friends. With its ease of preparation and customizable options, you can create a dish that truly reflects your personal taste. Whether enjoyed fresh out of the oven or as leftovers, this bake is guaranteed to be a crowd favorite.
- Prep Time: 15 minutes
 - Cook Time: 1 hour
 - Total Time: 1 hour 15 minutes
 - Yield: Serves approximately 8 people 1x
 - Category: Main
 - Method: Baking
 - Cuisine: French
 
Ingredients
- 2 large yellow onions
 - 2 tablespoons butter
 - 1 tablespoon olive oil
 - 1 teaspoon salt
 - ½ teaspoon black pepper
 - 1 teaspoon sugar (optional)
 - ½ teaspoon garlic powder
 - ½ teaspoon dried thyme (or 1 teaspoon fresh thyme)
 - ½ cup beef broth (or vegetable broth)
 - 4 large Yukon Gold potatoes, sliced ¼-inch thick
 - 1 tablespoon butter (for greasing)
 - 1 cup shredded Gruyère cheese (or Swiss, cheddar, or mozzarella)
 - ½ cup grated Parmesan cheese
 - 1 cup heavy cream or whole milk
 - ½ teaspoon salt
 - ¼ teaspoon black pepper
 - 1 teaspoon fresh thyme leaves
 - Fresh thyme sprigs (for garnish)
 - Extra Parmesan cheese (for topping)
 - Crispy fried onions (optional, for extra crunch)
 
Instructions
- In a skillet, melt butter and olive oil over medium heat. Add sliced onions, salt, pepper, and optional sugar; cook until caramelized.
 - Grease a baking dish with butter. Layer half of the sliced potatoes, followed by half of the caramelized onions and half of both cheeses. Repeat the layers.
 - In a bowl, whisk together cream (or milk), salt, pepper, and thyme; pour evenly over layers.
 - Cover with foil and bake at 375°F (190°C) for about 45 minutes. Remove foil, add extra Parmesan if desired, and bake uncovered for an additional 15-20 minutes until golden brown.
 - Let cool slightly before serving; garnish with fresh thyme if desired.
 
Nutrition
- Serving Size: 1/8 of the bake (approximately 150g)
 - Calories: 290
 - Sugar: 2g
 - Sodium: 450mg
 - Fat: 18g
 - Saturated Fat: 10g
 - Unsaturated Fat: 6g
 - Trans Fat: 0g
 - Carbohydrates: 26g
 - Fiber: 3g
 - Protein: 9g
 - Cholesterol: 45mg
 
