Roasted Garlic Potatoes Au Gratin | Good Food Discoveries (2024)

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Roasted Garlic Potatoes au Gratin is my all-time favourite comfort food recipe. It combines layers of thinly sliced potatoes, infused with the rich flavour of roasted garlic and creamy, cheesy goodness. It’s a real crowd-pleaser and perfect for any occasion!

Roasted Garlic Potatoes Au Gratin | Good Food Discoveries (1)

WHAT IS ROASTED GARLIC POTATOES AU GRATIN

Roasted Garlic Potatoes au Gratin is a classic French-inspired side dish that features thinly sliced potatoes layered with a creamy sauce and baked until tender and golden brown. The name “au gratin” refers to the crispy, golden crust that forms on top of the dish during baking. What sets this recipe apart is the addition of roasted garlic, which infuses the dish with a rich, savoury flavour that takes it to the next level.

INGREDIENTS YOU’LL NEED

  • Potatoes: Choose medium-sized potatoes, such as Russet or Maris Piper in the UK, which hold their shape well when baked.
  • Garlic: Roast one head of garlic, adding a sweet, caramelized flavour to the dish.
  • Creamy sauce: A combination of heavy/double cream, milk, and butter creates a luscious sauce that coats the potatoes.
  • Cheese: Use a blend of Parmesan cheese for its nutty flavour and Gruyère or mozzarella cheese for its melting qualities and creamy texture.
  • Seasonings: Fresh thyme leaves, nutmeg, salt, and pepper add a delicious touch to the dish.
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HOW TO MAKE ROASTED GARLIC POTATOES AU GRATIN

Please note:This is just an overview – the full ingredients and directions are in the recipe card at the bottom of this post.

Step 1: Roast the garlic. Preheat your oven to 350°F (180°C). Cut the top off a head of garlic to expose the cloves. Drizzle with olive oil, season with salt, and wrap in aluminum foil. Roast for 30 minutes until soft and golden. Allow to cool before handling.

Step 2: Prepare the potatoes. Grease a 9×13-inch (23×33 cm) baking dish. Peel and thinly slice the potatoes using a mandoline slicer for even slices. Arrange the potato slices upright in layers in the prepared dish.

Step 3: Make the creamy sauce. In a saucepan, combine heavy cream, milk, butter, half of the grated parmesan cheese, thyme, nutmeg, salt, and pepper. Heat until the butter is melted and the ingredients are well combined. Stir in the roasted garlic paste.

Step 4: Bake. Pour the creamy mixture over the potatoes, ensuring they are evenly coated. Cover with foil and bake for 40 minutes. Remove foil, top with shredded cheese and remaining parmesan, then bake uncovered for another 30 minutes until golden brown.

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STORING AND FREEZING

To store leftover Roasted Garlic Potatoes au Gratin, allow them to cool completely before transferring them to an airtight container and refrigerating for up to 3 days. I’m personally not a fan of freezing this dish, but if you’d like you can freeze leftovers in individual servings for up to 2 weeks. Please note that the texture and taste of this dish may change.

TOP TIPS

  • Thinly sliced potatoes: Use a mandoline for uniformly thin potato slices that bake evenly in the oven.
  • Roast garlic: Be sure to roast the garlic until soft and caramelized for maximum flavour.
  • Let it rest: Allow the dish to cool for a few minutes before serving to allow the flavours to come together and the creamy sauce to set.
Roasted Garlic Potatoes Au Gratin | Good Food Discoveries (4)

You may also enjoy…

Moroccan-style Harissa Chicken and Potato Bake

One-Pan Marry Me Chicken Orzo

Roasted Cauliflower Cheddar Soup

Caprese Stuffed Chicken

FAQ

Can I use different types of cheese?

Yes, feel free to experiment with different melting cheeses such as cheddar, havarti, or Monterey Jack to suit your taste preferences.

Can I substitute heavy cream?

Yes, if you’re looking for a lighter alternative, you can substitute heavy cream with half-and-half or milk and melted butter. Keep in mind that using lighter alternatives may affect the richness and creaminess of the dish.

Can I make this dish ahead of time?

Yes, you can assemble the dish up to a day in advance and refrigerate until ready to bake. Simply cover with foil and bake as directed when ready to serve.

Roasted Garlic Potatoes Au Gratin | Good Food Discoveries (5)

Roasted Garlic Potatoes au Gratin

Recipe by Magda Gonczaruk | Good Food Discoveries

5.0 from 145 votes

Course: Dinner, SidesCuisine: Western, FrenchDifficulty: Easy

Servings

8

servings

Cooking time

1

hour

10

minutes

Calories per serving

416

kcal

Total time

1

hour

40

minutes

Roasted Garlic Potatoes au Gratin is my all-time favourite comfort food recipe. It combines layers of thinly sliced potatoes, infused with the rich flavour of roasted garlic and creamy, cheesy goodness. It’s a real crowd-pleaser and perfect for any occasion!

Cook Mode

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INGREDIENTS

  • 8-9 medium starchy potatoes (about 1.2kg), thinly sliced

  • 1 head garlic, cut the top off

  • 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

  • Fresh chives, for garnish

DIRECTIONS

  • Preheat your oven to 375°F (190°C).
  • Begin by roasting the garlic. Cut the top off the head of garlic to expose the cloves. Place the garlic head on a piece of aluminium foil, drizzle with olive oil and season with a pinch of salt. Wrap the foil around the garlic and roast it in the preheated oven for about 30 minutes, or until the cloves are soft and golden. Once roasted, allow the garlic to cool slightly before handling.
  • While the garlic is roasting, grease a 9×13-inch (23×33 cm) baking dish and set aside.
  • Then peel and thinly slice the potatoes. I recommend using a mandoline slicer for even slices.
  • Take a stack of potatoes and arrange them upright in layers within the dish (check the video below). Continue layering until all potatoes are used.
  • In a saucepan, combine heavy/double cream, milk, butter, half of the grated parmesan cheese, thyme, nutmeg, pinch of salt and pepper. Heat over medium heat until butter is melted and the ingredients are well combined. Do not let it boil.
  • Once garlic is roasted, squeeze the garlic cloves out of their skins and mash them into a paste. Stir the roasted garlic paste into the cream mixture until well combined.
  • Pour the creamy mixture over the potatoes in the baking dish, ensuring they are evenly coated. Cover the dish tightly with kitchen foil.
  • Bake the potatoes au gratin in the preheated oven for 40 minutes.
  • Remove the foil and top the potatoes with the shredded Gruyere or mozzarella cheese and the remaining 1/4 cup of grated parmesan cheese.
  • Return the dish to the oven, uncovered, and bake for an additional 30 minutes, or until the cheese is bubbly and golden brown and potatoes are fork tender.
  • Once done, remove the potato au gratin from the oven and let it cool for a few minutes before serving.
  • Garnish with fresh chives and enjoy!

Notes

  • To store, transfer it to an airtight container and refrigerate for up to 3 days.
  • The nutrition information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.

Nutrition Facts

  • Total number of serves: 8
  • Calories: 416kcal
  • Carbohydrates: 29g
  • Protein: 13.3g
  • Fat: 28.1g
  • Saturated Fat: 16.8g
  • Monounsaturated Fat: 5.4g
  • Cholesterol: 36.9mg
  • Sodium: 271.6mg
  • Potassium: 674.4mg
  • Fiber: 3.2g
  • Sugar: 2.1g

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WATCH MY VIDEO ON HOW TO MAKE THIS ROASTED GARLIC POTATOES AU GRATIN

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So, don’t be shy, leave a comment and let me know how it turned out for you!

Roasted Garlic Potatoes Au Gratin | Good Food Discoveries (2024)

FAQs

Where did au gratin potatoes originate? ›

But its origins are crystal clear. Potatoes au Gratin or Gratin Dauphinois was first served during a state dinner held by Charles-Henri, the Duke of Clermont-Tonnerre and Lieutenant-general of the Dauphiné region in France in 1788.

What are gratin potatoes nutrition facts? ›

Homemade Au Gratin Potatoes (1 cup) contains 27.6g total carbs, 23.2g net carbs, 18.6g fat, 12.4g protein, and 328 calories.

What is the meaning of au gratin in food production? ›

What Does “Au Gratin” Mean? A “gratin” is any dish that is topped with cheese or breadcrumbs mixed with butter, then heated in the oven or under the broiler until brown and crispy, according to The Food Lover's Companion. The term au gratin or gratinée just refers to anything prepared in that manner.

What does au gratin mean in French? ›

The phrase au gratin literally means "by grating" in French, or "with a crust," from the verb gratter, "to scrape, scratch, or grate."

What is an interesting fact about Gratin Dauphinois? ›

Born in the Dauphiné, an ancient historical territory now covered by the departments of Isère, Drome and Hautes-Alpes, this dish also called "potatoes à la dauphinoise" appeared, in a first slightly different form, between the 16th and 17th centuries in Italy and Switzerland, but it was in 1788 that it became part of ...

What is the healthiest potato in the world? ›

The Healthiest Potato is the Red Potato

After taking into account the mineral density, the vitamin density, the macronutrient balance, the sugar-to-fiber ratio, the sodium-to-potassium ratio, and the phytochemical profile, red potatoes are the healthiest potato with data from the USDA Food Database.

What is the highest calorie potato? ›

Potatoes & Potato Products: Calories
FoodServingCalories
Roasted Sweet Potatoes 1 portion (340 g)100 g381 cal
Rosemary Potatoes 1 portion, medium (120 g)100 g194 cal
Russet Potatoes 1 piece, small (169 g)100 g140 cal
Shoestring French Fries 1 piece (3 g)100 g2 cal
35 more rows

Why are roasted potatoes healthy? ›

The risk of cholesterol, heart attack and stroke can be reduced by the consumption of roasted potatoes. The Vitamin B6 and fiber present in roasted potatoes help to improve metabolism. The increased weight can be easily reduced back to a normal level by including roasted potatoes in the diet.

What's the difference between au gratin potatoes and scalloped potatoes? ›

The difference comes down to cheese. Scalloped potato recipes are usually baked in a basic cream sauce until soft and tender, with no cheese topping. Potatoes au gratin are a bit more decadent. They are made with lots of cheese sprinkled in between the layers of potatoes and also on top of the casserole.

Why did potatoes au gratin curdle? ›

High heat will cause the milk to curdle. Use milk or cream with higher fat content. Whole milk, half-and-half, or cream and full-fat cheeses are necessary. Skim milk and reduced-fat products will not be your friend in this dish.

Why are my au gratin potatoes watery? ›

Some potatoes, like Yukon Gold, have more water in them. Try letting the dish rest for 10 minutes or so to let the water get absorbed and let the sauce thicken. Try cooking your recipe longer. Try uncovering the dish in the oven for the last 10 minutes or so.

Why is it called au gratin? ›

Like many culinary terms, the phrase au gratin derives from a French word that means something similar to “scrapings.” According to the Oxford Companion to Food, gratin simply refers to a crisply baked top.

What does gratin literally mean? ›

The etymology of gratin is from the French language words gratter, meaning "to scrape" (from having to scrape the food out of the dish it was cooked in). The technique predates the current name, which did not appear in English until 1846 (OED, s.v. "gratin").

What do you eat with au gratin? ›

Au Gratin potatoes are rich. Serve them with leaner proteins such as beef tenderloin, grilled or roasted chicken, and pan-seared fish. Another excellent pairing for Au Gratin potatoes is a fresh salad with herbs and a tart vinaigrette. Au Gratin potatoes make a great casserole and are a great entrée themselves.

Did potatoes originate in America or Europe? ›

Originating from the highlands of the Andes, South America, potatoes were introduced to Europe in the sixteenth century. They were initially popular in Spain because they provided cheap sustenance for the poor.

What is the difference between scalloped and au gratin potatoes? ›

The difference comes down to cheese. Scalloped potato recipes are usually baked in a basic cream sauce until soft and tender, with no cheese topping. Potatoes au gratin are a bit more decadent. They are made with lots of cheese sprinkled in between the layers of potatoes and also on top of the casserole.

What ethnicity are scalloped potatoes? ›

While the precise origin is unknown, the name for scalloped potatoes is said to derive from an English word, collop, which means to slice thinly. On the other hand, historians have said the name comes from the type of dish it is served in such as the original, oysters with breadcrumbs.

Why are scalloped potatoes called funeral potatoes? ›

Why are they called funeral potatoes? Funeral potatoes get their unique name from being a crowd-pleasing casserole served as a side dish at after-funeral luncheons (particularly in the culture of the Church of Jesus Christ of Latter-Day Saints).

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