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Traeger Garlic Gruyere Potato Gratin

This Garlic Gruyere Potato Gratin is a great option next to your next ham, steak, roast, or roasted chicken dinner! Rich, flavorful, and delicious. In this post you’ll get the recipe and all of our best tips for making sure this is the best pan of potatoes you and your guests have ever eaten. You can make this in your Traeger or in the oven!

Garlic Gruyere Potato Gratin

Garlic Gruyere Gratin Recipe

Potatoes are one of the world’s best and most versatile foods. Like many people, I am mildly obsessed, and could eat potatoes with every meal if given the opportunity.

This recipe is a fun twist on potatoes au gratin and features lots of garlic and the earthy, savory notes of Gruyère cheese. It has simple ingredients, many of which you probably already have in your fridge and pantry, and you’ll be sure to impress your whole family and all of your guests whipping out these delicious made-from-scratch potatoes.

Garlic Gruyere Potato Gratin

Traeger Garlic Gruyere Potato Gratin shopping list

Wondering if you have to hit the store? Here’s the list of items you’ll need to make this recipe. For specific amounts, please refer to the printable recipe card at the bottom of the post.

  • yukon gold potatoes
  • sea salt
  • ground black pepper
  • garlic
  • fresh thyme
  • shredded gruyere cheese
  • half and half

Try our Smoked Scalloped Potatoes too!

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Garlic Gruyere Potato Gratin

How to make Garlic Gruyere Potato Gratin

This is just the overview so you can see what you’re actually getting into here. When you are cooking, you’ll want to use the full recipe at the bottom of the page.



Get your grill or oven fired up to 375°F.



Butter a 9×13 inch pan. Slice your potatoes. Grate your cheese (if you haven’t already).



Toss the potato slices with the seasonings. Put half in the buttered baking dish. Top with half the cheese. Then add the other half of the potatoes, pour over the half and half, and then finally top with the remaining cheese.



Cover with foil and cook the potatoes for around 25-30 minutes.

Uncover and continue to cook for another 25-30 minutes, or until the potatoes are tender when pierced with a fork.

(Make sure to check the middle, that cooks slower than the edges!)


Rest & Enjoy

Let the potatoes rest for 5-10 minutes before slicing, and then serve hot.

These work great with my Double-Smoked Ham!

Garlic Gruyere Potato Gratin FAQ

What’s the best way to store the leftovers?

Cover any leftovers and store in the fridge for 2-3 days, max.

How should you reheat these potatoes?

We always use the microwave to reheat. An air fryer or oven would also work really well!

Are there any substitutes for the gruyere?

Sure are! You can use any shreddable cheese that melts well in this dish.

Try with our Smoked Prime Rib Roast!

Garlic Gruyere Potato Gratin

More great potato recipes to love!

Garlic Gruyere Potato Gratin
Yield: 12 servings

Garlic Gruyere Potato Gratin

Garlic Gruyere Potato Gratin

You're going to want an extra serving of this decadent garlic gruyere potato gratin! Serve this next to your next ham, rib roast, or plate of pork chops. It is so delicious!

Prep Time 20 minutes
Cook Time 1 hour
Total Time 1 hour 20 minutes


  • 2 pounds yukon gold potatoes
  • ½ teaspoon sea salt
  • ½ teaspoon ground black pepper
  • 3 garlic cloves, minced
  • 1 teaspoon fresh thyme
  • 3 cups shredded gruyere cheese
  • 1 cup half and half


  1. Preheat your Traeger Grill or oven to 375°F. Grease a 9x13 inch baking dish with butter and set aside.
  2. Slice potatoes thinly with a mandoline, ⅛ inch thick.
  3. In a large bowl, add potato, salt, pepper, garlic and thyme. Toss gently. 
  4. Place half of the potato in the baking dish. Sprinkle half of the cheese. Add the other half of the potato on top.
  5. Pour half and half over the potatoes then the remaining cheese.
  6. Cover with an aluminum foil and bake in the middle of the Traeger (or oven) for 25 - 30 minutes. Then, remove foil and bake for another 20 - 25 minutes, until potatoes are cooked through. Test by piercing a fork through the potatoes.
  7. Remove from the grill (or oven), let sit for 5-10 minutes, and serve hot.

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Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 213Total Fat: 11gSaturated Fat: 7gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 38mgSodium: 310mgCarbohydrates: 17gFiber: 2gSugar: 2gProtein: 11g

Nutrition data provided here is only an estimate.

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Nicole Johnson

Nicole Johnson, a self-taught expert in grilling and outdoor cooking, launched Or Whatever You Do in 2010. Her blog, renowned for its comprehensive and creative outdoor cooking recipes, has garnered a vast audience of millions. Nicole's hands-on experience and passion for grilling shine through her work. Her husband, Jeremiah Johnson, also plays a pivotal role in recipe development, adding his culinary flair to the mix. Together, they form a dynamic duo, offering a rich and varied outdoor cooking experience to their followers.

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