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Potatoes au Gratin Recipe

Potatoes au Gratin Recipe


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4.9 from 38 reviews

  • Total Time: 45 minutes
  • Yield: 6 1x

Description

Creamy Cheesy Potatoes au Gratin combine classic French comfort with rich, indulgent flavors. Layers of thinly sliced potatoes meld perfectly with a luxurious blend of sharp cheddar and gruyère, creating a luscious side dish that elevates any meal.


Ingredients

Scale

Main Ingredients:

  • 1.5 to 1.75 pounds (680 to 794 grams) russet potatoes, peeled and sliced thin (1/8 inch thick)
  • 2 cups (226 grams) Cheddar cheese, finely shredded
  • 0.75 cup (85 grams) Fontina or Provolone cheese, finely shredded
  • 0.25 cup (28 grams) Parmesan cheese, finely shredded

Liquid and Fat Ingredients:

  • 0.75 cup (177 milliliters) chicken stock
  • 2 tablespoons (28 grams) butter, plus extra for greasing the casserole dish

Aromatics and Seasoning:

  • 1 clove garlic, minced
  • 0.5 medium onion, minced
  • 1 teaspoon salt (divided into parts)
  • Salt to taste when cooking

Instructions

  1. Meticulously grease a 9 x 13 inch (23 x 33 centimeters) ceramic baking dish with unsalted butter to prevent potato adherence.
  2. Heat a large skillet over medium temperature, melt butter, and gently caramelize diced onions until translucent and softened, approximately 4-5 minutes.
  3. Incorporate minced garlic, kosher salt, and freshly ground black pepper into the onion mixture, stirring continuously to prevent burning and ensure even flavor distribution.
  4. Pour chicken stock and heavy cream into the skillet, creating a luxurious base for the potatoes, and gently fold in thinly sliced potatoes to coat evenly.
  5. Simmer the potato mixture on low heat, stirring occasionally, until potatoes become slightly tender but not completely cooked, roughly 12-15 minutes.
  6. Carefully transfer the creamy potato mixture into the prepared baking dish, ensuring an even layer and maximum surface coverage.
  7. Generously sprinkle a blend of sharp cheddar and gruyère cheeses across the potato surface, creating a rich and golden top layer.
  8. Position the baking dish in a preheated oven at 425°F (218°C) and bake until cheese melts completely and develops a beautiful golden-brown crust, approximately 15-20 minutes.
  9. Remove from oven and allow the dish to rest for 5-7 minutes, enabling the creamy sauce to set and intensify flavors.
  10. Garnish with finely chopped fresh parsley for a vibrant color and subtle herbaceous note before serving warm.

Notes

  • Cheese selection matters hugely for maximum flavor depth, so mix sharp cheddar with gruyère for complex taste profile.
  • Slicing potatoes uniformly ensures even cooking and prevents random soft or crunchy texture inconsistencies.
  • Room temperature ingredients blend smoother, helping create silkier sauce and more consistent potato coating.
  • Opt for starchy potato varieties like Russet or Yukon Gold, which absorb cream and melt wonderfully during baking.
  • Covering dish with foil during initial baking prevents excessive browning while allowing potatoes to cook thoroughly.
  • Letting dish rest 10-15 minutes after baking helps sauce thicken and flavors meld beautifully before serving.
  • Prep Time: 10 minutes
  • Cook Time: 35 minutes
  • Category: Dinner, Side Dish
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 6
  • Calories: 500 kcal
  • Sugar: 2g
  • Sodium: 800mg
  • Fat: 25g
  • Saturated Fat: 15g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 55g
  • Fiber: 4g
  • Protein: 20g
  • Cholesterol: 60mg