Roasted Garlic Potatoes au Gratin
Roasted Garlic Potatoes au Gratin is a comforting delight that brings warmth to any gathering. This dish features layers of thinly sliced potatoes, enriched with the delightful flavor of roasted garlic and topped with creamy cheese. Its versatility makes it perfect for family dinners, holiday feasts, or even casual get-togethers. Each bite offers a perfect blend of creamy goodness and savory notes, making it an unforgettable addition to your table.
Why You’ll Love This Recipe
- Delicious Flavor: The combination of roasted garlic and creamy cheese creates a rich taste that everyone will adore.
- Versatile Dish: Perfect as a side or main course, it pairs well with various proteins like chicken or beef.
- Easy to Prepare: With straightforward steps, this dish is simple enough for weeknight dinners yet impressive for special occasions.
- Crowd-Pleaser: It’s a guaranteed hit at gatherings, appealing to both kids and adults alike.
- Make Ahead Option: You can prepare it in advance and bake it just before serving, saving you time on busy days.
Tools and Preparation
To make Roasted Garlic Potatoes au Gratin successfully, you’ll need some essential tools in your kitchen.
Essential Tools and Equipment
- Baking dish (9×13-inch)
- Chef’s knife
- Mandoline slicer (optional)
- Aluminum foil
- Saucepan
Importance of Each Tool
- Baking dish: A proper size ensures even cooking of the potatoes while allowing them to layer beautifully.
- Chef’s knife: A sharp knife makes slicing the potatoes quick and easy, ensuring uniformity for even cooking.
- Mandoline slicer: This tool speeds up the slicing process and helps achieve consistent thickness for the potatoes.
- Aluminum foil: Covering the dish while baking prevents excessive browning and helps cook the potatoes through.

Ingredients
For this delightful Roasted Garlic Potatoes au Gratin recipe, gather the following ingredients:
Potatoes
- 8-9 medium starchy potatoes (about 1.2kg), thinly sliced
Garlic
- 1 head garlic, cut the top off
Dairy
- 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
Seasonings
- 1 tsp fresh thyme leaves (or 1/3 tsp dried thyme)
- 1/4 tsp nutmeg
- Salt and pepper to taste
Cheese
- 1/2 cup (40g) grated parmesan cheese, divided
- 2 cups (about 220g) shredded Gruyère or mozzarella cheese
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).
Step 2: Roast the Garlic
- Cut the top off the head of garlic to expose the cloves.
- Place the garlic head on a piece of aluminum foil.
- Drizzle with olive oil and season with a pinch of salt.
- Wrap the foil around the garlic and roast in the preheated oven for about 30 minutes or until soft and golden.
- Allow cooling slightly before handling.
Step 3: Prepare Your Baking Dish
Grease a 9×13-inch baking dish with butter and set aside.
Step 4: Slice Potatoes
Peel and thinly slice your potatoes. A mandoline slicer can help achieve even slices quickly.
Step 5: Layer Potatoes
Take stacks of sliced potatoes and arrange them upright in layers within the greased dish. Continue layering until all potatoes are used.
Step 6: Make Cream Mixture
In a saucepan over medium heat:
* Combine heavy cream, milk, butter, half of the grated parmesan cheese, thyme, nutmeg, salt, and pepper.
* Heat until butter melts; do not let it boil.
Step 7: Add Roasted Garlic
Once garlic is roasted:
* Squeeze out cloves from their skins into a bowl.
* Mash into a paste and stir it into the cream mixture until well combined.
Step 8: Pour Mixture Over Potatoes
Pour your creamy mixture evenly over all layered potatoes in the dish. Cover tightly with kitchen foil.
Step 9: Bake Covered
Bake in preheated oven for about 40 minutes.
Step 10: Add Cheese Topping
Remove foil:
* Top with shredded Gruyère or mozzarella cheese along with remaining parmesan cheese.
Step 11: Final Bake Uncovered
Return to oven uncovered:
* Bake for an additional 30 minutes until cheese is bubbly and golden brown; ensure potatoes are fork-tender.
Step 12: Cool Before Serving
Once done baking:
* Remove from oven and let cool for a few minutes before serving.
Step 13: Garnish
Garnish with fresh chives before enjoying your delicious Roasted Garlic Potatoes au Gratin!
How to Serve Roasted Garlic Potatoes au Gratin
Roasted Garlic Potatoes au Gratin is a delightful dish that complements many meals. Here are some serving suggestions to enhance your dining experience.
With a Fresh Green Salad
- A crisp salad with mixed greens, cucumbers, and a light vinaigrette balances the creaminess of the potatoes.
As a Side with Roast Chicken
- Pair the potatoes with juicy roast chicken for a hearty meal that’s sure to impress your guests.
Accompanied by Steamed Vegetables
- Brightly colored steamed vegetables add nutrition and visual appeal, making for a well-rounded plate.
Topped with Crispy Onions
- For added texture, sprinkle crispy fried onions on top before serving to give an extra crunch.
Alongside Grilled Steak
- The rich flavors of roasted garlic potatoes au gratin beautifully complement the savory notes of grilled steak.
How to Perfect Roasted Garlic Potatoes au Gratin
Achieving the perfect Roasted Garlic Potatoes au Gratin involves attention to detail. Here are some tips to ensure your dish turns out wonderfully every time.
- Choose the right potatoes: Use starchy potatoes like Yukon Gold or Russet for creamy layers and better absorption of flavors.
- Layer evenly: Ensure even layering of potato slices in the baking dish for uniform cooking and flavor distribution.
- Don’t skip roasting garlic: Roasting garlic enhances its sweetness and flavor, making it essential for this recipe.
- Monitor baking time: Keep an eye on the baking process; you want cheese bubbly and golden but not burnt.
- Let it rest: Allowing the dish to sit for a few minutes after baking helps it set and makes serving easier.
- Experiment with cheeses: While Gruyère is traditional, mixing different cheese varieties can add depth and richness.
Best Side Dishes for Roasted Garlic Potatoes au Gratin
When serving Roasted Garlic Potatoes au Gratin, consider these delicious side dishes that pair perfectly with its creamy texture.
- Herb-Crusted Salmon: The flaky fish offers a fresh contrast to the rich potatoes, making it a delightful pairing.
- Garlic Butter Shrimp: Juicy shrimp sautéed in garlic butter lend a savory element that complements the potatoes nicely.
- Grilled Asparagus: Tender asparagus adds color and crunch, enhancing both presentation and flavor profiles.
- Honey Glazed Carrots: Sweet and tender carrots balance the savory notes of the gratin while adding vibrant color.
- Ratatouille: This vegetable medley brings an array of flavors that harmonizes beautifully with roasted garlic notes.
- Caesar Salad: A classic Caesar salad’s tangy dressing pairs well, cutting through the richness of the dish.
- Roasted Brussels Sprouts: Crispy Brussels sprouts provide an earthy taste that complements the creamy gratin.
- Stuffed Bell Peppers: Colorful stuffed peppers filled with quinoa or rice add variety and nutritional value to your meal.
Common Mistakes to Avoid
When preparing Roasted Garlic Potatoes au Gratin, it’s easy to make some common mistakes. Here are a few pitfalls to watch out for:
- Using the wrong type of potatoes: Starchy potatoes work best for a creamy texture. Avoid waxy potatoes, as they won’t yield the same results.
- Not roasting the garlic enough: Underripe garlic can lead to a harsh flavor. Ensure you roast it until soft and golden for the best taste.
- Skipping the cheese layering: For maximum cheesiness, layer cheese between potato layers as well as on top. This creates a deliciously gooey texture throughout.
- Overbaking: Keep an eye on your dish during the last baking phase. Overbaking can dry out the potatoes and make them less enjoyable.
- Ignoring seasoning: A pinch of salt and pepper is essential. Don’t forget to season your layers as you go for optimal flavor.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container in the refrigerator.
- They will stay fresh for up to 3-4 days.
Freezing Roasted Garlic Potatoes au Gratin
- You can freeze portions in freezer-safe containers or bags.
- They will maintain quality for up to 2 months.
Reheating Roasted Garlic Potatoes au Gratin
- Oven: Preheat to 350°F (175°C) and bake covered for about 20 minutes until heated through.
- Microwave: Heat individual portions on medium power for 1-2 minutes or until hot, stirring halfway through.
- Stovetop: Warm over low heat in a pan, adding a splash of milk if necessary to restore creaminess.
Frequently Asked Questions
Here are some common questions about Roasted Garlic Potatoes au Gratin:
Can I use other cheeses in Roasted Garlic Potatoes au Gratin?
Yes! You can mix and match cheeses like cheddar or fontina for different flavors.
How do I make Roasted Garlic Potatoes au Gratin healthier?
Consider using low-fat cream or substituting half of it with vegetable broth while still enjoying great taste.
What should I serve with Roasted Garlic Potatoes au Gratin?
These potatoes pair well with roasted chicken, grilled vegetables, or a fresh salad.
Can I prepare Roasted Garlic Potatoes au Gratin in advance?
Absolutely! You can assemble everything ahead of time and refrigerate it until ready to bake.
Final Thoughts
Roasted Garlic Potatoes au Gratin is not only comforting but also versatile enough for any meal. Feel free to customize by adding your favorite herbs or using different cheeses. This delightful dish will surely impress your family or guests—give it a try!
Roasted Garlic Potatoes au Gratin
Indulge in the comforting delight of Roasted Garlic Potatoes au Gratin, a dish that transforms simple starchy potatoes into a creamy, cheesy masterpiece. This recipe features thinly sliced potatoes layered with aromatic roasted garlic and topped with gooey cheese, making it an irresistible addition to any gathering. Whether you’re hosting a family dinner or preparing for a holiday feast, this versatile dish pairs beautifully with chicken or beef and is sure to impress even the pickiest eaters. With straightforward preparation steps, you can easily create this crowd-pleaser that everyone will adore. Don’t miss out on this warm and savory comfort food!
- Prep Time: 20 minutes
- Cook Time: 70 minutes
- Total Time: 1 hour 30 minutes
- Yield: Serves approximately 8 people 1x
- Category: Side Dish
- Method: Baking
- Cuisine: American
Ingredients
- 8–9 medium starchy potatoes
- 1 head garlic
- 1 cup heavy cream
- 1/4 cup whole milk
- 1 tablespoon unsalted butter
- 1 tsp fresh thyme leaves
- Salt and pepper to taste
- 2 cups shredded Gruyère or mozzarella cheese
Instructions
- Preheat your oven to 375°F (190°C).
- Roast the garlic by cutting the top off, drizzling with oil, wrapping in foil, and baking for about 30 minutes.
- Grease a 9×13-inch baking dish with butter.
- Thinly slice the potatoes using a chef's knife or mandoline slicer.
- Layer the sliced potatoes upright in the baking dish.
- In a saucepan over medium heat, combine heavy cream, whole milk, butter, half of the parmesan cheese, thyme, salt, and pepper; heat until butter melts.
- Squeeze roasted garlic cloves into a bowl, mash into a paste, and mix into the cream mixture.
- Pour the mixture over layered potatoes and cover with foil; bake for about 40 minutes.
- Remove foil, top with remaining cheese, and bake uncovered for an additional 30 minutes until golden brown.
Nutrition
- Serving Size: 1 cup (approximately 200g)
- Calories: 290
- Sugar: 2g
- Sodium: 300mg
- Fat: 18g
- Saturated Fat: 10g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 26g
- Fiber: 3g
- Protein: 7g
- Cholesterol: 45mg
