Roasted Garlic Potatoes au Gratin is a dish that brings comfort and warmth to any gathering. This creamy, cheesy delight features layers of tender potatoes infused with roasted garlic, making it an irresistible side for both casual dinners and festive occasions. Whether you’re serving it at a cozy family meal or a holiday feast, this recipe is sure to impress your guests with its rich flavor and satisfying texture.
Why You’ll Love This Recipe
- Delicious Flavors: The combination of roasted garlic and creamy cheese creates a mouthwatering taste that everyone will enjoy.
- Easy Preparation: With simple steps, you can create a stunning dish without spending hours in the kitchen.
- Versatile Side Dish: Perfect for any occasion, from weeknight dinners to special gatherings, this dish pairs well with various main courses.
- Crowd-Pleasing: Roasted Garlic Potatoes au Gratin is always a hit at parties, making it an ideal choice when entertaining guests.
- Comfort Food Classic: This recipe captures the essence of comfort food, bringing warmth and satisfaction to your table.
Tools and Preparation
To achieve the perfect Roasted Garlic Potatoes au Gratin, you’ll need some essential tools. Having the right equipment can make your cooking experience smoother and more enjoyable.
Essential Tools and Equipment
- Mandoline slicer
- 9×13-inch baking dish
- Aluminum foil
- Mixing bowl
- Saucepan
Importance of Each Tool
- Mandoline slicer: Ensures even slicing of potatoes for uniform cooking and texture.
- 9×13-inch baking dish: Provides ample space for layering potatoes while allowing the cheese to melt beautifully.
- Aluminum foil: Helps trap heat and moisture during baking for perfectly cooked potatoes without burning.
Ingredients
For this delightful Roasted Garlic Potatoes au Gratin, gather the following ingredients:
For the Potatoes
- 8-9 medium starchy potatoes (about 1.2kg), thinly sliced
- 1 head garlic, cut the top off
For the Creamy Mixture
- 1 cup (250 ml) heavy cream / double cream
- 1/4 cup (60 ml) whole milk
- 1 tablespoon unsalted butter, plus more for greasing the baking dish
- 1 tsp fresh thyme leaves (or 1/3 tsp dried thyme)
- 1/4 tsp nutmeg
- 1/2 cup (40g) grated parmesan cheese, divided
- 2 cups (about 220g) shredded Gruyère or mozzarella cheese
- Salt and pepper to taste
For Garnish
- Fresh chives, for garnish
How to Make Roasted Garlic Potatoes au Gratin
Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C). This ensures that your dish cooks evenly from start to finish.
Step 2: Roast the Garlic
Begin by roasting the garlic:
1. Cut the top off the head of garlic to expose the cloves.
2. Place the garlic on a piece of aluminum foil, drizzle with olive oil, and season with salt.
3. Wrap the foil around the garlic and roast in the preheated oven for about 30 minutes until soft and golden.
Step 3: Prepare Your Baking Dish
While the garlic is roasting:
1. Grease a 9×13-inch baking dish with butter and set aside.
Step 4: Slice the Potatoes
Peel and thinly slice your potatoes using a mandoline slicer. This will ensure even cooking throughout.
Step 5: Layer Your Potatoes
Take a stack of potato slices:
1. Arrange them upright in layers within your prepared baking dish.
2. Continue layering until all potato slices are used up.
Step 6: Make the Cream Mixture
In a saucepan:
1. Combine heavy cream, milk, butter, half of the grated parmesan cheese, thyme, nutmeg, salt, and pepper.
2. Heat over medium heat until melted together but do not let it boil.
Step 7: Prepare Roasted Garlic Paste
Once your garlic is roasted:
1. Squeeze out the cloves from their skins into a bowl.
2. Mash them into a paste and stir into your cream mixture until well combined.
Step 8: Combine Everything Together
Pour your creamy mixture over the layered potatoes in your baking dish:
– Ensure all slices are evenly coated using a spatula if needed.
– Cover tightly with aluminum foil.
Step 9: Bake Covered
Bake in your preheated oven for about 40 minutes covered with foil. This will help soften your potatoes perfectly.
Step 10: Add Cheese Topping
After 40 minutes:
1. Remove foil carefully.
2. Top with shredded Gruyère or mozzarella cheese along with remaining grated parmesan cheese.
Step 11: Bake Uncovered
Return to oven uncovered:
– Bake for an additional 30 minutes until cheese is bubbly and golden brown.
Step 12: Cool Before Serving
Once done:
– Remove from oven and let cool for a few minutes before serving to allow flavors to settle.
Step 13: Garnish
Finally:
– Garnish with fresh chives before serving for an added touch of flavor!
Enjoy this delightful Roasted Garlic Potatoes au Gratin as part of your next meal!
How to Serve Roasted Garlic Potatoes au Gratin
Roasted Garlic Potatoes au Gratin is a versatile dish that pairs beautifully with various main courses. Whether you’re hosting a dinner party or enjoying a cozy family meal, these creamy potatoes will impress everyone at the table.
With Grilled Meats
- Steak: The rich flavors of roasted garlic complement the juicy, savory taste of grilled steak.
- Chicken: A simple grilled chicken breast or herb-marinated chicken thighs works well alongside these cheesy potatoes.
As a Comfort Food Staple
- Roast Beef: Serve with slices of tender roast beef for a comforting Sunday dinner.
- Meatloaf: Pair with classic meatloaf for a nostalgic meal that warms the heart.
Vegetarian Options
- Stuffed Peppers: Roasted garlic potatoes are an excellent side for colorful stuffed bell peppers filled with rice and veggies.
- Mushroom Risotto: The creamy texture of risotto and the garlicky flavor of the potatoes create a delightful combination.
With Salads
- Caesar Salad: A crisp Caesar salad adds freshness and balances the richness of the dish.
- Mixed Greens: Lightly dressed mixed greens provide a refreshing contrast to the creamy layers of potatoes.

How to Perfect Roasted Garlic Potatoes au Gratin
To achieve the best results with your Roasted Garlic Potatoes au Gratin, follow these helpful tips. They will elevate your dish and ensure perfect layers of flavor.
- Use Starchy Potatoes: Choose starchy varieties like Russets or Yukon Golds for a creamier texture.
- Layer Evenly: Make sure to layer potatoes evenly in your baking dish for consistent cooking and flavor distribution.
- Don’t Skip the Roasted Garlic: This ingredient is key! It adds depth and sweetness that enhances the overall taste.
- Let it Rest: Allowing the finished dish to rest before serving helps set the layers and makes serving easier.
- Experiment with Cheeses: While Gruyère is traditional, feel free to mix different cheeses like cheddar or fontina for unique flavors.
- Adjust Seasoning: Taste as you go! Adjust salt, pepper, and herbs according to your preference for an even tastier result.
Best Side Dishes for Roasted Garlic Potatoes au Gratin
Roasted Garlic Potatoes au Gratin can shine even brighter when paired with complementary side dishes. Consider these options to enhance your meal experience.
- Grilled Asparagus: Lightly seasoned asparagus adds a fresh crunch that balances the creaminess of the potatoes.
- Honey-Glazed Carrots: Sweet carrots contrast perfectly with savory flavors and add a pop of color to your plate.
- Brussels Sprouts Salad: A raw Brussels sprouts salad brings brightness and texture, making it an ideal pairing.
- Garlic Bread: For garlic lovers, serve crusty garlic bread on the side to soak up any creamy goodness left on your plate.
- Coleslaw: A tangy coleslaw offers a refreshing bite that cuts through the richness of the gratin.
- Baked Beans: Sweet and smoky baked beans are hearty enough to match this comforting potato dish while adding variety.
Common Mistakes to Avoid
Making the perfect Roasted Garlic Potatoes au Gratin can be tricky. Avoid these common mistakes to ensure your dish turns out delicious every time.
Using the wrong type of potatoes: Not all potatoes are created equal. Starchy potatoes like Russets or Yukon Golds work best for a creamy texture. Avoid waxy potatoes as they won’t soften properly.
Neglecting to season adequately: Seasoning your layers is crucial for flavor. Don’t skip the salt and pepper in the potato layers and the cream mixture, as this enhances the overall taste.
Overcrowding the baking dish: Layering too many potatoes at once can lead to uneven cooking. Make sure to arrange them tightly but not overcrowded for consistent baking.
Not allowing the garlic to cool before handling: If you squeeze hot garlic, it may burn your hands and create an unpleasant paste. Let it cool down a bit before you mash it into your cream mixture.
Skipping the resting time: Allowing your Roasted Garlic Potatoes au Gratin to rest after baking helps set the layers. Cutting into them right away can cause them to fall apart.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- They will last up to 3-4 days in the fridge.
Freezing Roasted Garlic Potatoes au Gratin
- Place cooled portions in freezer-safe containers.
- They can be frozen for up to 2 months for best quality.
Reheating Roasted Garlic Potatoes au Gratin
- Oven: Preheat to 350°F (175°C). Cover with foil and heat for 20-30 minutes until warmed through.
- Microwave: Heat individual portions on medium power for about 2-3 minutes, checking often.
- Stovetop: In a skillet over low heat, stir occasionally until heated throughout.
Frequently Asked Questions
Here are some common questions about making Roasted Garlic Potatoes au Gratin that might help you out.
Can I use different cheeses?
You can definitely customize this recipe! Feel free to mix cheeses like cheddar or fontina, but Gruyère adds a unique creaminess.
How do I prevent my potatoes from browning?
To avoid browning, soak sliced potatoes in cold water until you’re ready to layer them. This also helps remove excess starch!
Can I make Roasted Garlic Potatoes au Gratin ahead of time?
Yes! You can prepare everything up to baking ahead of time. Just cover and refrigerate until you’re ready to bake.
What should I serve with Roasted Garlic Potatoes au Gratin?
These potatoes pair wonderfully with roasted meats, grilled vegetables, or a fresh salad for a complete meal.
Final Thoughts
Roasted Garlic Potatoes au Gratin is a comforting dish that brings warmth and joy to any table. With its creamy layers and rich garlic flavor, it’s perfect for gatherings or cozy family dinners. Feel free to experiment with different herbs and cheeses to make it your own!
Roasted Garlic Potatoes au Gratin
Roasted Garlic Potatoes au Gratin is a creamy, cheesy side dish that transforms humble potatoes into a luxurious treat. Infused with the deep, rich flavor of roasted garlic, this gratin features tender layers of starchy potatoes enveloped in a velvety cheese sauce. It’s the perfect companion for any meal, from casual family dinners to festive gatherings, guaranteed to impress and satisfy every palate.
- Prep Time: 20 minutes
- Cook Time: 70 minutes
- Total Time: 1 hour 30 minutes
- Yield: Serves approximately 6 people
- Category: Side Dish
- Method: Baking
- Cuisine: Comfort Food
Ingredients
- 8-9 medium starchy potatoes, thinly sliced
- 1 head garlic
- 1 cup heavy cream
- 1/4 cup whole milk
- 1 tablespoon unsalted butter
- 1 teaspoon fresh thyme leaves
- 1/4 teaspoon nutmeg
- 1/2 cup grated parmesan cheese
- 2 cups shredded Gruyère or mozzarella cheese
- Salt and pepper to taste
Instructions
- Preheat the oven to 375°F (190°C).
- Roast the garlic by cutting off the top and drizzling with olive oil. Wrap in foil and bake for about 30 minutes until soft.
- Grease a baking dish with butter. Slice potatoes thinly using a mandoline.
- Layer potato slices upright in the dish.
- In a saucepan, heat cream, milk, butter, half parmesan, thyme, nutmeg, salt, and pepper until melted but not boiling.
- Squeeze roasted garlic into a bowl and mash into a paste. Stir into the cream mixture.
- Pour the creamy mixture over the layered potatoes and cover with foil.
- Bake for 40 minutes covered, then uncover and add remaining cheeses on top.
- Bake uncovered for another 30 minutes until bubbly and golden brown.
Nutrition
- Serving Size: 1 cup (240g)
- Calories: 410
- Sugar: 3g
- Sodium: 550mg
- Fat: 25g
- Saturated Fat: 15g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 3g
- Protein: 10g
- Cholesterol: 70mg








