Roasted Garlic Potatoes au Gratin

Highlighted under: Comfort Food

Savor the creamy, cheesy goodness of Roasted Garlic Potatoes au Gratin, a delightful twist on a classic dish. Layers of thinly sliced potatoes are enveloped in a rich, garlicky cream sauce and topped with melted cheese, creating a mouthwatering side that pairs perfectly with any main course. This recipe is not only comforting but also an excellent crowd-pleaser for gatherings and holiday dinners.

Megan Douglas

Created by

Megan Douglas

Last updated on 2025-12-10T11:44:01.173Z

This dish is perfect for family gatherings and holiday dinners, ensuring that everyone leaves the table satisfied.

Perfect for Any Occasion

Roasted Garlic Potatoes au Gratin are the ultimate side dish, elevating your dinner table for both casual and formal settings. Whether it's a family gathering, holiday feast, or a simple weeknight meal, this dish adds a touch of elegance. The comforting flavors and creamy texture make it universally loved, ensuring that everyone will be reaching for seconds. Serve it alongside roasted meats, grilled vegetables, or a fresh salad for a well-rounded meal.

The beauty of this recipe lies in its versatility. You can easily customize the types of cheese used based on your preference or what you have on hand. Gruyere, cheddar, and even pepper jack can create unique flavor profiles that suit your crowd. With just a few adjustments, this dish can cater to various palates, making it a reliable choice for gatherings of all sizes.

A Guide to Roasting Garlic

Roasting garlic enhances its natural sweetness and mellows out its sharpness, adding depth to the cream sauce in this recipe. To roast garlic, you will start by preheating your oven to 400°F (200°C). Cut the top off a whole head of garlic, drizzle it with olive oil, and wrap it in aluminum foil. Roast for about 30-35 minutes until the cloves are golden and soft. Once roasted, you can easily squeeze the cloves out of their skins, ready to infuse your cream sauce with rich flavor.

Not only does roasted garlic bring a wonderful flavor, but it also packs health benefits. Garlic is known for its antioxidant properties and can boost your immune system, making this dish a delicious way to enjoy those advantages. Incorporating roasted garlic into your cooking expands the profile of your dishes, so consider trying it in other recipes like soups, sauces, and spreads.

Tips for Perfect Potatoes au Gratin

While making Roasted Garlic Potatoes au Gratin is relatively straightforward, a few tips can ensure perfect results every time. First, uniform slicing of the potatoes is crucial. A mandoline slicer can help achieve even thickness, allowing the potatoes to cook evenly. Aim for slices that are about 1/8 inch thick; this will help the potatoes layer well and absorb the garlicky cream without becoming mushy.

Additionally, ensure your baking dish is appropriately greased to prevent sticking. If you wish for a crispier top, consider adding breadcrumbs mixed with cheese before the final bake. This not only adds a delightful crunch but also enhances the cheese flavor profile. Finally, letting the dish rest for a few minutes after baking allows the layers to set, making it easier to serve.

Ingredients

Ingredients

  • 4 large russet potatoes
  • 1 cup heavy cream
  • 1 head of garlic
  • 2 cups shredded cheese (e.g., Gruyere, cheddar)
  • 2 tablespoons butter
  • Salt and pepper to taste
  • Fresh thyme for garnish (optional)

Make sure to use fresh garlic for the best flavor!

Instructions

Prepare the Potatoes

Preheat your oven to 375°F (190°C). Peel and thinly slice the potatoes using a mandoline or sharp knife.

Make the Cream Sauce

In a saucepan, combine heavy cream, roasted garlic (squeeze out the cloves from the head), salt, and pepper. Heat gently until warmed through.

Layer the Potatoes

In a greased baking dish, layer the sliced potatoes, pouring the cream mixture over each layer. Add shredded cheese between layers.

Bake

Dot the top with butter and cover with aluminum foil. Bake for 45 minutes, then remove the foil and bake for an additional 15 minutes until golden and bubbly.

Allow to cool slightly before serving to let the layers set.

Serving Suggestions

This Roasted Garlic Potatoes au Gratin pairs beautifully with a variety of main courses. For a classic combination, serve it alongside herb-roasted chicken or a juicy beef roast. The richness of the potatoes complements the savory flavors of the meat, creating a well-balanced plate. For vegetarian options, consider serving it with grilled asparagus or a hearty green salad for a delightful contrast of textures.

If you're hosting a holiday gathering, these au gratin potatoes can be a show-stopping side dish. Their creamy, cheesy richness makes them a standout against a backdrop of festive fare. To elevate the presentation, sprinkle fresh thyme or parsley over the top before serving for a burst of color and freshness.

Storage and Reheating

Storing leftover Roasted Garlic Potatoes au Gratin is simple. After they've cooled, transfer them to an airtight container and refrigerate for up to three days. The flavors will continue to meld, making for even tastier leftovers. For those who love to meal prep, you can also freeze the dish before baking to save time on busy nights. Just be sure to thaw it in the fridge overnight before baking.

To reheat, place the potatoes in a preheated oven at 350°F (175°C) for about 20-25 minutes or until heated through. If they look a little dry, a splash of cream can help restore moisture and creaminess. Enjoying this dish a second time might just make you appreciate it even more!

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Questions About Recipes

→ Can I make this ahead of time?

Yes, you can prepare it a day in advance and refrigerate it before baking.

→ What type of cheese is best?

A combination of Gruyere and cheddar works wonderfully for flavor and melt.

Roasted Garlic Potatoes au Gratin

Savor the creamy, cheesy goodness of Roasted Garlic Potatoes au Gratin, a delightful twist on a classic dish. Layers of thinly sliced potatoes are enveloped in a rich, garlicky cream sauce and topped with melted cheese, creating a mouthwatering side that pairs perfectly with any main course. This recipe is not only comforting but also an excellent crowd-pleaser for gatherings and holiday dinners.

Prep Time20 minutes
Cooking Duration1 hour
Overall Time1 hour 20 minutes

Created by: Megan Douglas

Recipe Type: Comfort Food

Skill Level: Intermediate

Final Quantity: 4 servings

What You'll Need

Ingredients

  1. 4 large russet potatoes
  2. 1 cup heavy cream
  3. 1 head of garlic
  4. 2 cups shredded cheese (e.g., Gruyere, cheddar)
  5. 2 tablespoons butter
  6. Salt and pepper to taste
  7. Fresh thyme for garnish (optional)

How-To Steps

Step 01

Preheat your oven to 375°F (190°C). Peel and thinly slice the potatoes using a mandoline or sharp knife.

Step 02

In a saucepan, combine heavy cream, roasted garlic (squeeze out the cloves from the head), salt, and pepper. Heat gently until warmed through.

Step 03

In a greased baking dish, layer the sliced potatoes, pouring the cream mixture over each layer. Add shredded cheese between layers.

Step 04

Dot the top with butter and cover with aluminum foil. Bake for 45 minutes, then remove the foil and bake for an additional 15 minutes until golden and bubbly.

Nutritional Breakdown (Per Serving)

  • Calories: 350
  • Fat: 25g
  • Carbohydrates: 30g
  • Protein: 8g