Potatoes Au Gratin is a really simple side dish to make on the grill or bake in the oven. Layers of thin sliced potatoes with butter, herbs and spices and cheese.

We skip the cream for a lighter potato casserole that compliments any meal on the grill. It’s a great addition to holiday dinners and any special occasion.

If we are hosting a holiday meal or birthday celebration for the whole family, chances are that we are making that meal on the grill. This potatoes au gratin casserole is a perfect side to serve with Grilled Prime Rib or Smoked Turkey Breast.

Ingredients for Potatoes Au Gratin:

Russet Potatoes or Yukon Gold
Granulated Garlic
Dried Thyme
Smoked Paprika
Kosher Salt
Black Pepper
Sharp Cheddar Cheese
Butter
Fresh Herbs for Garnish: Parsley and Thyme

How to Make Potatoes Au Gratin:

Peel potatoes and place whole potatoes in a large pan and cover with cold water.
Cook potatoes about 8 minutes.
Drain and cool slightly.
Slice potatoes into thin slices using a mandoline slicer or sharp knife.
Place potato slices in a large bowl and cover with cold water, set aside for 5 minutes, drain and repeat for another 5 minutes. This process removes some of the starch and will help the potatoes maintain the slices while cooking and not turning to mush.
Drain potatoes well.

Layer potato slices in an even layer, slightly overlapping in a round casserole dish, baking pan or cast iron skillet that has been buttered.
In a small bowl, combine the garlic, thyme, smoked paprika, salt and pepper.
Sprinkle half of the spices over the potatoes. Top with half of cheese.
Add another layer of potatoes and sprinkle with remaining spices.
Melt butter and drizzle over the potatoes.

Top with remaining cheese.

Cover with aluminum foil.
Place on a hot grill over indirect fire, cooking with the grill lid closed for about 45 minutes.

Remove foil and check potatoes for doneness, continue to cook until potatoes are tender, keeping the foil over the potatoes until done.
When potatoes are cooked through, remove from grill and take off the foil. Cool 5 minutes.

Invert potatoes onto a serving platter or plate.
Garnish with fresh herbs and slice into wedges to serve.

Oven Directions:

Bake potato casserole covered with foil at 375° for 45 minutes to one hour until cooked through.

Recipe Variations:

If you prefer a creamy sauce, add 1/2 cup heavy cream to the melted butter and pour over the potatoes before adding the top layer of cheese.
Different kinds of cheese will work with this au gratin potatoes recipe. Some great options are gruyere cheese, monterey jack or colby or use a combination of cheeses.
Sautéed onions can also be added to the center layer of the casserole.
Add 1/4 cup of bread crumbs over the last layer of shredded cheese.

How to Store and Reheat:

Store potatoes wrapped in plastic wrap or in an airtight container in the refrigerator up to 4 days.

To reheat potatoes, place in a baking pan and cover with foil. Heat in a 350° oven for 15 minutes or until heated through.

Au gratin potato recipes add a bit of elegance and beautiful presentation to any meal. It’s the perfect side dish for Thanksgiving dinner or any holiday gathering.

The cheesy potatoes are flavorful and delicious with a great texture that is sure to be the kind of comfort food that everyone will love.

More Delicious Potato Recipes to Grill:

Homemade Potatoes Au Gratin is a great recipe to add to your next cookout or holiday dinner plans. The layers of tender potatoes with loads of cheese is a great side dish that is always a family pleaser.

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5 from 3 votes