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Creamy potatoes au gratin inspired by Ruth's Chris restaurant

Copycat Ruth’s Chris Potatoes au Gratin

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A comforting side dish that combines creamy potatoes, flavorful cheeses, and a hint of garlic, perfect for any occasion.

  • Total Time: 35 minutes
  • Yield: 6 servings 1x

Ingredients

Scale
  • 2 tbsp butter (plus extra for greasing)
  • 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 creaminess)
  • 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

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

Notes

Use a mandoline slicer for uniformly cut potatoes and let the dish rest before serving for best results.

  • Author: Sam Razal
  • Prep Time: 20 minutes
  • Cook Time: 15 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Nutrition

  • Serving Size: 1 serving
  • Calories: 350
  • Sugar: 3g
  • Sodium: 500mg
  • Fat: 21g
  • Saturated Fat: 12g
  • Unsaturated Fat: 7g
  • Trans Fat: 0g
  • Carbohydrates: 32g
  • Fiber: 3g
  • Protein: 10g
  • Cholesterol: 60mg