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Copycat Ruth’s Chris Potatoes au Gratin

This rich and creamy Copycat Ruth’s Chris Potatoes au Gratin recipe layers tender potatoes in a savory cream sauce with a blend of cheddar, Fontina, and Parmesan cheeses, all baked to bubbly perfection.
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Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Course Side Dish
Cuisine American
Servings 6 servings
Calories 490 kcal

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 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 mix of 2 cups Cheddar, 3/4 cup Fontina or Provolone, and 1/4 cup Parmesan
  • 1 tbsp chopped parsley for garnish

Instructions
 

  • Preheat your oven to 425°F (220°C) to ensure even baking.
  • In a large skillet over medium heat, melt 2 tablespoons of butter. Add the minced onion and cook for about 5 minutes until soft, then add garlic, salt, and pepper. Cook for an additional 30 seconds until fragrant.
  • Pour in the chicken stock and heavy cream, stirring to combine. Add the thinly sliced potatoes, ensuring they are well-coated in the sauce.
  • Increase the heat to bring the mixture to a simmer. Cover, reduce heat to medium-low, and cook until the potatoes are nearly tender, about 15-20 minutes. Stir occasionally.
  • Butter an 8x8-inch baking dish or five to six small individual dishes.
  • Transfer the potatoes and sauce to the prepared baking dish, spreading evenly. Top with an even layer of shredded cheese mixture.
  • Bake for 10-15 minutes, or until the cheese is melted and golden brown. Let the dish rest for a few minutes before serving.
  • Sprinkle with chopped parsley and serve warm. Enjoy!

Notes

This creamy, cheesy gratin pairs perfectly with steak, chicken, or a green salad. You can make this dish in advance and reheat in the oven at 350°F until warmed through.

Nutrition

Serving: 1servingsCalories: 490kcalCarbohydrates: 24.7gProtein: 17.7gFat: 37gSaturated Fat: 22.7gTrans Fat: 0.3gCholesterol: 123mgSodium: 883mgFiber: 2.2gSugar: 1.7g
Keyword cheesy potatoes, copycat recipe, gratin, potatoes au gratin, Ruth's Chris