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–+ servings
CHEESY POTATO AU GRATIN
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Cheesy Au Gratin Potatoes

Creamy layers of thinly sliced potatoes are baked in a rich cheese sauce until bubbly and golden. These Cheesy Au Gratin Potatoes are easy enough for a cozy weeknight meal yet elegant enough for the Thanksgiving dinner table. Every bite is cheesy, tender, and full of comforting flavor.
Prep Time20 minutes
Cook Time1 hour 30 minutes
Total Time1 hour 50 minutes
Course: Side Dish
Cuisine: American
Keyword: Baked Potatoes with Cheese, Cheesy Au Gratin Potatoes, Cheesy Potato Casserole, Classic Au Gratin Potatoes, Creamy Potato Side Dish, Easy Au Gratin Potatoes, Holiday Potato Side Dish, Homemade Au Gratin Potatoes, Thanksgiving Potato Recipe, Weeknight Potato Recipe
Servings: 6 people
Calories: 471kcal
Author: George - U Keep Cooking

Equipment

  • Oven Safe Baking Dish
  • Mandolin

Ingredients

  • 6 Med Potatoes Yukon Gold (peeled and sliced thin) (about 2 pounds)
  • 1 Onion (minced)
  • 3 Cloves Garlic (minced)
  • 3 tbsp Butter
  • 3 tbsp Flour
  • 2 Cups Whole Milk
  • 1 ½ Cups Cheddar Cheese Extra Sharp (shredded) (½ Cup Set Aside)
  • 1 Cup Gruyere Cheese (shredded)
  • 1 tsp Smoked Paprika
  • Salt
  • Pepper

Instructions

  • The first step is to mince the onions and garlic. I used my Cuisinart Mini-Prep to mince the onion or you can use a cheese grater.
  • Next, melt the butter in the saucepan over medium heat. Then add the onions. garlic, and cook until they are soft.
  • Whisk in the flour to create a roux and whisk in the milk. Mix it well to try to avoid lumps.
  • Add in the cheese and stir until the cheese is melted and add in the smoked paprika. Taste the cheese sauce and add salt and pepper as needed.
  • Preheat your oven to 350 degrees F. In a well-greased casserole dish layer three thinly sliced potatoes on the bottom. Salt and pepper the potatoes as you layer them. Pour half of the cheese sauce on these potatoes.
  • Repeat again with the last three potatoes and pour the remaining cheese sauce on top.
  • Cover the baking dish with aluminum foil and place in the oven for one hour. After one hour remove the foil, top with the reserved ½ cup cheddar cheese, and bake for an additional 30 minutes. The top of the au gratin potatoes will become bubbly and golden brown.
  • Serve immediately.

Nutrition

Calories: 471kcal | Carbohydrates: 54g | Protein: 21g | Fat: 20g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 0.02g | Cholesterol: 62mg | Sodium: 441mg | Potassium: 1103mg | Fiber: 5g | Sugar: 10g | Vitamin A: 792IU | Vitamin C: 44mg | Calcium: 577mg | Iron: 2mg