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Au-Gratin-Potatoes-Recipe

Au Gratin Potatoes

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Experience the comforting taste of Au Gratin Potatoes. This dish features layers of tender potatoes, sweet onions, and a creamy, cheesy sauce. A simple yet flavorful recipe perfect for meals that warm the heart and satisfy the appetite.

  • Total Time: 2 hours 15 minutes
  • Yield: 10 servings 1x

Ingredients

Scale
  • 3 pounds yukon gold or red potatoes
  • 1 medium sweet or yellow onion
  • 3 tablespoons butter
  • 3 tablespoons flour
  • 2 cups whole milk
  • 1 teaspoon ground dry mustard
  • 1 cup sharp cheddar cheese, shredded
  • ½ cup gruyere or swiss cheese, shredded
  • salt, to taste
  • ground black pepper, to taste

Instructions

  1. Preheat oven to 400°F (200°C). Grease a 3 quart casserole dish with non-stick cooking spray and set aside.
  2. Scrub the potatoes and pat them dry with paper towels. Slice each potato into 1/8" thin slices using a sharp knife or mandoline slicer.
  3. Cut the onion in half, place the flat side down, and slice as thinly as possible.
  4. Layer the potato and onion slices in the prepared casserole dish.
  5. In a medium saucepan, melt the butter. Whisk in the flour and cook for 1-2 minutes.
  6. Slowly whisk in the milk and ground dry mustard. Season with salt and pepper. Continue whisking over medium heat until the mixture thickens and bubbles.
  7. Remove from heat and stir in the shredded cheeses until melted.
  8. Pour the cheese sauce over the layered potatoes and onions.
  9. Spray foil with non-stick cooking spray and cover the baking dish. Bake for 60 minutes.
  10. Remove the foil and bake for an additional 20-30 minutes until bubbly and golden brown on top.
  11. Let sit for 15 minutes before serving.

Last Step:

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Notes

For extra flavor, consider adding garlic or herbs to the cheese sauce.
Soaking the sliced potatoes in cold water for 30 minutes can help remove excess starch and keep them from browning.
Ensure the cheeses are at room temperature for easier melting.

  • Author: Sarah
  • Prep Time: 20 minutes
  • Cook Time: 115 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 serving
  • Calories: 380
  • Sugar: 2g
  • Sodium: 500mg
  • Fat: 22g
  • Saturated Fat: 12g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 35g
  • Fiber: 3g
  • Protein: 11g
  • Cholesterol: 50mg

Find it online: https://www.deliciousrecipesblog.com/au-gratin-potatoes/