Caramelised Onion, Gruyère & Thyme Scalloped Potatoes are like a warm hug on a plate. Imagine thinly sliced potatoes layered with sweet, caramelized onions, gooey Gruyère cheese, and fragrant thyme, all bubbling away in a creamy sauce. The aroma wafts through the air, inviting your loved ones to gather around the table for an unforgettable meal.

Every bite is a delightful mix of textures and flavors that transports you to cozy family dinners. Whether it’s a chilly autumn evening or a festive gathering, this dish shines brightly as the star of your culinary show.
Why You'll Love This Recipe
- This dish is perfect for impressing guests without breaking a sweat in the kitchen
- The layers of flavor create a comforting experience that feels gourmet
- Its golden brown top looks stunning while offering an irresistible aroma that fills your home
- Plus, you can easily customize it to suit any palate or occasion
I remember the first time I made this dish; my friends devoured it within minutes and then fought over the last spoonful. Who knew potatoes could spark such joy?
Essential Ingredients
Here’s what you’ll need to make this delicious dish:
Yukon Gold Potatoes: These starchy beauties hold their shape well and provide a creamy texture when cooked.
Gruyère Cheese: A nutty cheese with great melting properties; gruyère adds depth and richness.
Onions: Sweet yellow onions work best for caramelization, bringing out their natural sugars.
Fresh Thyme: A fragrant herb that elevates the dish with its earthy aroma; fresh is best!
Heavy Cream: This gives the scalloped potatoes their luxurious creaminess; don’t skimp here!
Butter: Use unsalted butter to sauté the onions for flavor without added salt.
Salt & Pepper: Basic but essential seasonings to enhance all the flavors in this dish.
The full ingredients list, including measurements, is provided in the recipe card directly below.

How to Make Caramelised Onion, Gruyère & Thyme Scalloped Potatoes
Prepare Your Ingredients: Start by preheating your oven to 375°F (190°C). Peel and slice your Yukon Gold potatoes into thin rounds while trying not to make them too uneven—your knife skills are on display here!
Carmelize the Onions: In a large skillet over medium heat, melt butter until foamy. Add sliced onions and cook them gently until they turn golden brown and sweet-smelling—this will take about 15 minutes.
Layer It Up!: Grease a baking dish with butter or nonstick spray. Begin layering half of the sliced potatoes at the bottom, followed by half of the caramelized onions and half of the gruyère cheese.
Add Cream & Seasoning: Pour half of the heavy cream over your first layer and sprinkle salt, pepper, and thyme across it for flavor magic! Repeat this layering process with remaining ingredients.
Bake Until Golden Brown: Cover your baking dish with aluminum foil (shiny side down) and bake for 45 minutes. Then remove foil and continue baking for another 25-30 minutes until golden brown on top and bubbly underneath.
Let It Rest Before Serving: Once out of the oven, allow your scalloped potatoes to rest for about 10 minutes before diving in—this helps set everything up nicely!
Enjoy every cheesy bite of these Caramelised Onion, Gruyère & Thyme Scalloped Potatoes as they steal the spotlight at your next dinner gathering!
You Must Know
- Caramelised Onion, Gruyère & Thyme Scalloped Potatoes offer creamy layers with a savory twist
- The rich aroma of thyme combined with sweet onions creates a mouthwatering experience
- Perfect for gatherings, these scalloped potatoes are your go-to comfort food that impresses every time
Perfecting the Cooking Process
Start by caramelizing the onions slowly until golden brown. Then layer the potatoes with cheese and thyme, pouring the cream mixture in between. Bake until bubbly and golden for perfect results.
Add Your Touch
Feel free to swap Gruyère for cheddar or even add roasted garlic for an extra flavor punch. You can also layer in some sautéed mushrooms or spinach for a veggie boost.
Storing & Reheating
Store leftovers in an airtight container in the fridge for up to three days. Reheat in the oven at 350°F until warmed through to maintain that delicious cheesy texture.
Chef's Helpful Tips
- Always slice your potatoes evenly to ensure they cook uniformly, avoiding mushy or crunchy pieces
- For richer flavor, let the dish rest before serving; it allows all those tasty juices to settle
- Don’t skimp on seasoning; it elevates the entire dish beautifully
Sharing this recipe brings back memories of family dinners where everyone fought over the last scoop of these scalloped potatoes—life’s simple pleasures never tasted so good!
FAQ
Can I make Caramelised Onion, Gruyère & Thyme Scalloped Potatoes ahead of time?
Yes, you can prepare them partially and bake just before serving.
What type of potatoes work best for scalloped potatoes?
Yukon Gold or Russet potatoes create the best creamy texture and flavor.
How long should I bake these scalloped potatoes?
Bake at 375°F for about 45-55 minutes until bubbly and golden brown on top.

Caramelised Onion, Gruyère & Thyme Scalloped Potatoes
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- Author: Ann Foster
- Total Time: 1 hour 30 minutes
- Yield: Serves 8
Description
Caramelised Onion, Gruyère & Thyme Scalloped Potatoes are a comforting delight that combines creamy layers of tender potatoes, sweet caramelized onions, and rich Gruyère cheese. Perfect for family gatherings or chilly evenings, this dish is a crowd-pleaser that brings warmth to the table. With its golden, bubbling top and inviting aroma, each bite promises a blend of textures and flavors that will make your meal memorable.
Ingredients
- 2 lbs Yukon Gold potatoes, thinly sliced
- 2 cups Gruyère cheese, shredded
- 2 large yellow onions, thinly sliced
- 3 sprigs fresh thyme, chopped
- 1 cup heavy cream
- 4 tbsp unsalted butter
- Salt & pepper to taste
Instructions
- Preheat oven to 375°F (190°C).
- In a skillet over medium heat, melt butter and caramelize the onions until golden brown (about 15 minutes).
- Grease a baking dish. Layer half of the sliced potatoes, followed by half of the onions and half of the cheese.
- Pour half of the cream over the first layer and season with salt, pepper, and thyme. Repeat layering with remaining ingredients.
- Cover with aluminum foil and bake for 45 minutes. Remove foil and continue baking for an additional 25-30 minutes until golden brown.
- Let rest for 10 minutes before serving.
- Prep Time: 20 minutes
- Cook Time: 70 minutes
- Category: Main
- Method: Baking
- Cuisine: Comfort Food
Nutrition
- Serving Size: 1 serving
- Calories: 322
- Sugar: 2g
- Sodium: 350mg
- Fat: 20g
- Saturated Fat: 12g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 27g
- Fiber: 3g
- Protein: 8g
- Cholesterol: 59mg






