Copycat Ruth’s Chris Potatoes au Gratin

Indulge in this creamy and decadent Copycat Ruth’s Chris Potatoes au Gratin recipe. Layers of tender potatoes are smothered in a rich cream sauce infused with a blend of Cheddar, Fontina, and Parmesan cheeses, then baked to golden perfection. A restaurant-worthy side dish that’s perfect for holidays, special occasions, or an elevated dinner at home!

Prep Time

15 minutes

Cook Time

45 minutes

Total Time

1 hour

Course

Side Dish

Cuisine

American

Servings

6 servings

Calories

400 kcal

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Ingredients

• 2 tbsp butter (plus extra for greasing the dish)
• 1/2 medium onion, minced
• 1 clove garlic, minced
• 1.25 tsp salt, for seasoning
• 1/2 tsp ground black pepper, for seasoning
• 3/4 cup chicken stock, for the sauce
• 1.25 cups heavy cream, for creamy texture
• 1.5–1.75 lbs russet potatoes (about 5–6), peeled and sliced 1/8 inch thick
• 3 cups shredded cheese (2 cups Cheddar, 3/4 cup Fontina or Provolone, and 1/4 cup Parmesan)
• 1 tbsp chopped parsley, for garnish

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Instructions

1. Preheat the Oven
   Preheat your oven to 425°F (220°C) for even baking.
2. Prepare the Cream Sauce
   • Melt 2 tablespoons of butter in a large skillet over medium heat.
   • Add the minced onion and cook for about 5 minutes until softened. Stir in garlic, salt, and pepper, cooking for an additional 30 seconds until fragrant.
3. Cook the Potatoes
   • Pour the chicken stock and heavy cream into the skillet, stirring to combine.
   • Add the sliced potatoes, ensuring they’re evenly coated.
   • Bring the mixture to a simmer, then cover and reduce the heat to medium-low. Cook for 15–20 minutes, stirring occasionally, until the potatoes are nearly tender.
4. Assemble the Dish
   • Butter an 8×8-inch baking dish or 5–6 small individual dishes.
   • Transfer the potatoes and sauce into the prepared dish, spreading them evenly.
5. Top with Cheese
   Sprinkle the shredded cheese mixture evenly over the potatoes.
6. Bake to Perfection
   • Place the dish in the oven and bake for 10–15 minutes, or until the cheese is melted and golden brown.
   • Let the gratin rest for a few minutes before serving.
7. Garnish and Serve
   Sprinkle with chopped parsley for a fresh touch and serve warm.

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Notes

• This dish pairs beautifully with steak, chicken, or a crisp green salad.
• To make ahead, prepare up to the baking step and refrigerate. Reheat in the oven at 350°F until warmed through and bubbly.

Nutrition

• Calories: 400 kcal

Enjoy a comforting side dish that will have everyone reaching for seconds!