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Cheesy Au Gratin Potatoes Recipe

Cheesy Au Gratin Potatoes Recipe


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4.8 from 31 reviews

  • Total Time: 1 hour 15 minutes
  • Yield: 7 1x

Description

Irresistible creamy au gratin potatoes showcase layers of thinly sliced potatoes melted with rich cheese and cream. Comfort cuisine from France delivers a delectable side dish that will make diners crave more.


Ingredients

Scale
  • 2 lbs (900 g) russet or Yukon Gold potatoes
  • 1 cup shredded sharp cheddar cheese
  • ½ cup shredded Gruyere or Parmesan cheese
  • ½ cup additional shredded cheese
  • 1 ½ cups heavy cream
  • ½ cup whole milk
  • 1 small onion
  • 2 cloves garlic
  • 2 tbsps butter
  • 2 tbsps all-purpose flour
  • 1 tsp salt
  • ½ tsp black pepper
  • ½ tsp smoked paprika
  • 1 tsp Dijon mustard
  • 2 tbsps chopped fresh parsley

Instructions

  1. Prepare Oven: Preheat oven to 375F (190C), creating an optimal environment for baking the creamy potato dish.
  2. Prepare Baking Dish: Grease a 9×13-inch baking pan with butter or cooking spray, ensuring no potato layers will stick during cooking.
  3. Slice Potatoes: Using a mandoline or sharp knife, thinly and uniformly slice potatoes, removing skins and creating delicate, translucent rounds for layering.
  4. Layer and Season: Arrange potato slices in overlapping rows, alternating with salt, pepper, garlic, and grated cheese to distribute flavors throughout the dish.
  5. Create Cream Sauce: Whisk cream, garlic, salt, and pepper together until smooth, creating a rich and velvety liquid to saturate the potato layers completely.
  6. Assemble and Cover: Pour cream mixture over potatoes, ensuring complete coverage, then sprinkle remaining cheese on top and seal with aluminum foil.
  7. Bake and Finish: Place in preheated oven and cook for 45-50 minutes, removing foil during the final 15 minutes to allow the top to turn golden and crispy.
  8. Rest and Serve: Remove from oven and let stand 10-15 minutes, allowing sauce to set and flavors to meld before presenting this luxurious potato gratin.

Notes

  • Slice Potatoes Evenly: Use a mandoline slicer for consistent, thin potato rounds that cook uniformly and create a beautiful layered texture.
  • Control Moisture Carefully: Pat potato slices dry before layering to prevent excess water that could make the dish soggy and compromise the creamy consistency.
  • Cheese Selection Matters: Choose high-quality melting cheeses like Gruyère or sharp cheddar for maximum flavor and perfect golden-brown top.
  • Prevent Burning: Watch closely during the final uncovered baking stage to ensure a golden crust without scorching the potatoes or cheese.
  • Prep Time: 15 minutes
  • Cook Time: 1 hour
  • Category: Dinner, Side Dish
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 7
  • Calories: 410
  • Sugar: 2 g
  • Sodium: 480 mg
  • Fat: 28 g
  • Saturated Fat: 17 g
  • Unsaturated Fat: 9 g
  • Trans Fat: 0 g
  • Carbohydrates: 34 g
  • Fiber: 3 g
  • Protein: 9 g
  • Cholesterol: 90 mg