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Creamy Roasted Garlic Potatoes au Gratin to Swoon Over

Published: Dec 16, 2025 by Sierra Lane · This post may contain affiliate links · Leave a Comment

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As I pulled the head of roasted garlic from the oven, the sweet, savory aroma instantly transported me to my grandmother's kitchen, where comfort food reigned supreme. Today, I’m thrilled to share my must-try recipe for Roasted Garlic Potatoes au Gratin, a dish that elegantly combines creamy textures and cheesy goodness with a hint of garlic charm. This recipe is a glorious way to indulge while also being surprisingly simple; it requires just a handful of ingredients and can effortlessly elevate any meal, whether it’s a cozy family dinner or a gathering with friends. Plus, it’s a delightful crowd-pleaser that pairs well with virtually anything. Are you ready to dive into this cheesy adventure and impress your loved ones?

Roasted Garlic Potatoes au Gratin

What makes this dish irresistible?

Comforting, Cheesy Goodness: This Roasted Garlic Potatoes au Gratin delights with layers of creamy goodness and melted cheese that create a harmonious blend of flavors.

Simplicity: With just a few ingredients and a straightforward process, you'll be amazed at how effortlessly this dish comes together.

Perfect for Sharing: Serving up to eight, it's an ideal side for family gatherings or cozy dinner parties.

Versatile Addition: Pair these potatoes with almost any main dish, from roasted meats to fresh salads, and watch your guests swoon.

Aromatic Experience: The roasting of garlic brings out a sweet, rich aroma that fills your home, setting the stage for a memorable meal.

These potatoes are not just a side—they're a delightful culinary experience! If you’re a fan of comforting classics, check out my other delicious recipes to elevate your meal repertoire!

Roasted Garlic Potatoes au Gratin Ingredients

For the Potatoes
• Yukon Gold potatoes – These creamy, buttery potatoes hold their shape beautifully and have a lovely flavor.
• Fresh garlic – Roasting enhances the sweetness of the garlic, making it a star ingredient in this dish.

For the Creamy Sauce
• Heavy cream – Adds rich, velvety texture; for a lighter version, you can substitute with half-and-half.
• Whole milk – Balances the richness of the cream; feel free to use low-fat milk if you prefer.
• Salt – Enhances all the flavors; adjust to taste based on your preference.
• Black pepper – Adds a touch of warmth; freshly cracked pepper provides the best flavor.
• Fresh thyme – Offers a fragrant earthy note; dried thyme works too, but use less since it's more concentrated.
• Paprika – A sprinkle of this adds color and a hint of smokiness to the dish.

For the Cheesy Goodness
• Swiss cheese – Melts beautifully and complements the garlic; feel free to swap with Gruyère for added nuttiness.
• Cheddar cheese – Brings a sharp, tangy flavor; opting for sharp cheddar will enhance the cheese profile.

For Garnish
• Fresh parsley – Adds a pop of color and freshness to your Roasted Garlic Potatoes au Gratin; you can use chives as an alternative if desired.

Step‑by‑Step Instructions for Roasted Garlic Potatoes au Gratin

Step 1: Roast the Garlic
Preheat your oven to 400°F (200°C). Slice the top off a head of garlic, drizzle it with olive oil, and wrap it in aluminum foil. Roast it in the oven for 30-35 minutes until soft and golden. Once it's cool enough to handle, squeeze the roasted garlic into a bowl and mash it with a fork until smooth.

Step 2: Prepare the Cream Mixture
In a mixing bowl, combine 1 cup of heavy cream, 1 cup of whole milk, the mashed roasted garlic, 1 teaspoon of salt, ½ teaspoon of black pepper, 1 teaspoon of fresh thyme, and ½ teaspoon of paprika. Whisk the ingredients together until well blended and creamy, creating a rich sauce that will elevate your Roasted Garlic Potatoes au Gratin.

Step 3: Layer the Potatoes
Grease a 9x13 inch baking dish with a bit of olive oil or non-stick spray. Arrange half of the thinly sliced Yukon Gold potatoes evenly at the bottom of the dish. Pour half of your prepared cream mixture over the potatoes, ensuring they are covered. Sprinkle half of the shredded Swiss and cheddar cheeses over the top for that delightful cheesy flavor.

Step 4: Repeat the Layers
Repeat the layering process with the remaining sliced potatoes, pouring the rest of the cream mixture over them. Finish by topping this layer with the remaining Swiss and cheddar cheeses, creating a luscious, cheesy crown for your Roasted Garlic Potatoes au Gratin.

Step 5: Bake Covered
Cover the baking dish with aluminum foil to retain moisture during baking. Place it in the preheated oven and bake for 45 minutes. This will allow the potatoes to become tender and absorb the creamy flavors, setting the stage for cheesy perfection.

Step 6: Bake Uncovered
After 45 minutes, carefully remove the foil and continue baking for an additional 20-25 minutes. Keep a close eye on the dish, and look for a golden brown, bubbly top. The potatoes should be tender, indicating your Roasted Garlic Potatoes au Gratin are nearly ready to impress.

Step 7: Rest and Garnish
Allow the dish to sit for about 10 minutes before serving to let the flavors meld. Finally, garnish the top with freshly chopped parsley for a lovely pop of color and freshness, making your Roasted Garlic Potatoes au Gratin even more inviting.

Roasted Garlic Potatoes au Gratin

Roasted Garlic Potatoes au Gratin Variations

Feel free to mix things up with these delightful twists on the classic recipe, bringing new flavors and textures to your table!

  • Dairy-Free: Replace heavy cream and milk with coconut milk for a deliciously rich and nutty flavor. You'll love the creaminess that this alternative offers!

  • Herb-Infused: Add fresh rosemary or sage to elevate the herby notes in this dish. These herbs pair wonderfully with garlic and potatoes, adding an earthy aroma.

  • Spicy Kick: Stir in diced jalapeños or a sprinkle of cayenne pepper for a zesty heat that will surprise and delight your taste buds. Bold, spicy flavors can transform this dish into a true standout.

  • Sweet Potatoes: Swap out half of the Yukon Gold potatoes for sweet potatoes for a naturally sweet twist. The vibrant color and flavor add a beautiful contrast that’s just as comforting.

  • Extra Veggies: Layer in sliced mushrooms, spinach, or roasted bell peppers for added nutrition and color. This twist not only boosts flavor but also makes it a heartier side dish.

  • Smoky Flavor: Incorporate smoked cheese or a dash of liquid smoke into the creamy sauce for a unique smoky profile that takes the classic to the next level. It's an unexpected but delightful transformation!

  • Nutty Topping: Sprinkle crushed nuts like pistachios or walnuts on top before baking for added crunch and flavor. The nutty texture creates a wonderful contrast to the creamy potatoes.

  • Cheese Lovers: Mix in a variety of cheeses such as fontina, goat cheese, or even blue cheese for a gourmet touch. Each cheese contributes its unique flavor and makes for a lavish taste experience.

With these variations, you'll be able to impress your family and friends time after time! If you're looking to elevate your meal even further, consider pairing these potatoes with my lovely Lemon Herb Grilled Chicken or serving it alongside a fresh Garden Salad with Balsamic Vinaigrette to round out the dining experience!

How to Store and Freeze Roasted Garlic Potatoes au Gratin

Fridge: Store leftover Roasted Garlic Potatoes au Gratin in an airtight container for up to 3 days. Reheat in the oven or microwave until warmed through.

Freezer: For longer storage, freeze portions in airtight containers for up to 2 months. Thaw in the fridge overnight before reheating.

Reheating: Reheat in a 350°F (175°C) oven, covered for 15-20 minutes, or until heated through. For a crispier top, uncover for the last 5 minutes.

Make Ahead Options

These Roasted Garlic Potatoes au Gratin are perfect for meal prep enthusiasts! You can slice the Yukon Gold potatoes and prepare the creamy sauce (heavy cream, milk, roasted garlic, and spices) up to 24 hours in advance, storing them separately in the refrigerator to maintain their freshness. When you're ready to cook, simply layer the potatoes and the sauce as directed, finishing with the cheeses on top. Bake according to the original instructions, adding a few extra minutes if the dish was chilled, to ensure everything is heated through and bubbly. This way, you'll save precious time on busy weeknights while still serving up rich, cheesy goodness that your family will love!

What to Serve with Roasted Garlic Potatoes au Gratin

Elevate your dining experience with these delightful pairings that perfectly complement the rich flavors of your creamy potatoes.

  • Herb-Crusted Roast Chicken: The crispy herbs add a savory contrast to the creamy texture, creating a wonderful balance of flavors.

  • Steamed Asparagus: Lightly seasoned, these bright green spears introduce freshness that pairs beautifully with the richness of the gratin.

  • Mixed Green Salad: A crunchy mix with a zesty vinaigrette softens the cheese's creaminess, making for a light and refreshing counterpoint.

  • Braised Short Ribs: This hearty, indulgent dish combining tender meat and bold flavors provides a satisfying heft that matches the gratin’s comfort.

  • Grilled Salmon: The smoky, savory profile of grilled salmon complements the creamy potatoes while offering a delightful texture contrast.

  • Garlic Butter Breadsticks: Soft and buttery, these addictive sticks will have everyone scooping up the creamy goodness left on their plates.

  • Chardonnay or Pinot Grigio: These crisp, white wines enhance the dish’s savoriness, making each bite an exquisite journey of flavors.

A feast awaits; each of these pairings elevates and balances your Roasted Garlic Potatoes au Gratin experience!

Expert Tips for Roasted Garlic Potatoes au Gratin

  • Choosing Potatoes: Yukon Gold potatoes are perfect for this dish due to their creamy texture. Avoid waxy potatoes, as they may not hold up well when baked.

  • Roasting Garlic: Don’t rush the roasting process! It enhances sweetness and depth. Make sure it’s soft and golden before using.

  • Layering Wisely: Layering is key! Ensure each layer of potatoes is evenly covered with cream and cheese to prevent dry spots during baking.

  • Cheese Choices: Feel free to explore different cheeses! Gruyère or Monterey Jack can offer a unique flavor twist while still complementing your Roasted Garlic Potatoes au Gratin.

  • Baking Time Monitoring: Keep an eye on the dish as it bakes uncovered. Every oven is different, so your baking time may vary for achieving that golden brown, bubbly top.

  • Resting Period: Letting it rest for 10 minutes allows the dish to set, making it easier to serve while keeping that gorgeous presentation intact!

Roasted Garlic Potatoes au Gratin

Roasted Garlic Potatoes au Gratin Recipe FAQs

How do I select the best potatoes for this recipe?
When choosing potatoes for your Roasted Garlic Potatoes au Gratin, I highly recommend Yukon Gold potatoes. Their creamy texture and buttery flavor hold up beautifully when baked. Look for firm potatoes without any dark spots or blemishes. Avoid waxy potatoes, as they may not achieve the desired creamy consistency.

What’s the best way to store leftovers?
Absolutely! Store any leftover Roasted Garlic Potatoes au Gratin in an airtight container in the fridge for up to 3 days. When reheating, you can either use the oven or microwave. If you're using the oven, preheat it to 350°F (175°C) and cover the dish with foil to retain moisture while warming!

Can I freeze this dish for later?
Yes, you can definitely freeze Roasted Garlic Potatoes au Gratin! To do so, portion the cooled dish into airtight containers or freezer bags. Make sure to remove any excess air. They can be stored in the freezer for up to 2 months. To reheat, simply thaw it in the refrigerator overnight before baking or microwaving until heated through.

How can I achieve the perfect texture without overcooking the potatoes?
Great question! To ensure perfectly tender potatoes, it's important to arrange your layers evenly and keep an eye on the baking time. Bake covered initially for 45 minutes to allow the potatoes to cook through, and then uncover for an additional 20-25 minutes to achieve that gorgeous, golden-brown top. Always test for doneness by inserting a fork into the potatoes; they should be tender but not mushy!

Are there any dietary considerations for this recipe?
Definitely! This dish contains dairy from the cream and cheeses, so it isn't suitable for those with lactose intolerance or dairy allergies. If you're looking for a dairy-free version, consider substituting the heavy cream and milk with plant-based alternatives like almond or coconut milk. Just be sure to check that the cheeses used are non-dairy if you're avoiding dairy altogether.

What should I do if my potatoes remain firm?
If you find that your Roasted Garlic Potatoes au Gratin aren’t as tender as you'd like, don't worry! Simply cover the dish with foil and return it to the oven for an additional 10-15 minutes. This will help steam and soften the potatoes further. Always check with a fork for tenderness, and if they need more time, give them a little extra!

Roasted Garlic Potatoes au Gratin

Creamy Roasted Garlic Potatoes au Gratin to Swoon Over

Indulge in Roasted Garlic Potatoes au Gratin, a creamy, cheesy side dish that's perfect for any gathering.
Print Recipe Pin Recipe
Prep Time 15 minutes mins
Cook Time 1 hour hr 10 minutes mins
Resting Time 10 minutes mins
Total Time 1 hour hr 35 minutes mins
Course Side Dishes
Cuisine Comfort Food
Servings 8 servings
Calories 450 kcal

Equipment

  • Oven
  • baking dish
  • mixing bowl
  • whisk
  • aluminum foil

Ingredients
  

For the Potatoes

  • 3 pounds Yukon Gold potatoes Thinly sliced
  • 1 head Fresh garlic Roasted

For the Creamy Sauce

  • 1 cup Heavy cream Or half-and-half for a lighter version
  • 1 cup Whole milk Low-fat version okay
  • 1 teaspoon Salt
  • 0.5 teaspoon Black pepper Freshly cracked
  • 1 teaspoon Fresh thyme Dried thyme works too
  • 0.5 teaspoon Paprika

For the Cheesy Goodness

  • 1 cup Swiss cheese Shredded
  • 1 cup Cheddar cheese Shredded

For Garnish

  • 2 tablespoons Fresh parsley Chopped

Instructions
 

Roasted Garlic Potatoes au Gratin Instructions

  • Preheat your oven to 400°F (200°C). Slice the top off a head of garlic, drizzle it with olive oil, and wrap it in aluminum foil. Roast it in the oven for 30-35 minutes until soft and golden. Once it's cool enough to handle, squeeze the roasted garlic into a bowl and mash it with a fork until smooth.
  • In a mixing bowl, combine 1 cup of heavy cream, 1 cup of whole milk, the mashed roasted garlic, 1 teaspoon of salt, ½ teaspoon of black pepper, 1 teaspoon of fresh thyme, and ½ teaspoon of paprika. Whisk the ingredients together until well blended and creamy.
  • Grease a 9x13 inch baking dish with olive oil. Arrange half of the thinly sliced Yukon Gold potatoes evenly at the bottom of the dish. Pour half of your prepared cream mixture over the potatoes and sprinkle half of the shredded Swiss and cheddar cheeses over the top.
  • Repeat the layering process with the remaining sliced potatoes, pouring the rest of the cream mixture over them and topping with the remaining Swiss and cheddar cheeses.
  • Cover the baking dish with aluminum foil to retain moisture. Place it in the preheated oven and bake for 45 minutes.
  • After 45 minutes, remove the foil and continue baking for an additional 20-25 minutes until the top is golden brown and bubbly.
  • Allow the dish to sit for about 10 minutes before serving. Garnish with freshly chopped parsley.

Notes

Yukon Gold potatoes are preferred for their creamy texture. Feel free to experiment with different cheeses for unique flavors.

Nutrition

Serving: 1servingCalories: 450kcalCarbohydrates: 40gProtein: 10gFat: 30gSaturated Fat: 15gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gCholesterol: 70mgSodium: 600mgPotassium: 700mgFiber: 3gSugar: 2gVitamin A: 600IUVitamin C: 10mgCalcium: 250mgIron: 2mg
Keyword cheesy potatoes, Creamy Potatoes, Potato Gratin, Roasted Garlic Potatoes au Gratin, side dish, Vegetarian Side Dish
Tried this recipe?Let us know how it was!

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About Sierra Lane

Season-obsessed cook sharing quick, produce-packed recipes for everyday meals—straight from my farmers’ market basket to your table.

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