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Cheesy Gratin Potatoes 39.png

Cheesy Gratin Potatoes

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🧀 This Au Gratin Potatoes recipe features creamy, cheesy layers perfect for comforting family meals.
🥔 The rich cheese sauce and tender Yukon gold potatoes create a golden, flavorful dish that everyone will love.

  • Total Time: 1 hour 45 minutes
  • Yield: 8 servings

Ingredients

– 6 to 7 medium Yukon gold potatoes, thinly sliced into 1/8 inch rounds (approximately 3 pounds)

– 1/2 white or yellow onion, sliced

– 2 tablespoons salted butter

– 1/4 cup all-purpose flour (whole wheat, all-purpose, or gluten-free 1:1 flour can be used)

– 1 1/2 cups unsweetened almond milk (or regular, skim, or whole milk)

– 8 ounces sharp cheddar cheese (about 2 heaping cups shredded)

– 1/2 teaspoon garlic powder

– 3/4 teaspoon salt, plus more to taste

– Freshly ground black pepper (to taste)

– 1/2 cup Gruyere cheese (or substitute additional sharp cheddar)

– 1/4 cup grated Parmesan cheese

– Fresh chopped parsley

Instructions

1-Preheat oven and prepare dish: Start by preheating your oven to 375 degrees Fahrenheit and greasing a 2-quart square or 8×12 baking dish with nonstick spray, butter, or oil. This sets the stage for even cooking and easy cleanup.

2-Arrange potatoes and onions: Next, arrange the thinly sliced potatoes in three tight, slightly slanted rows, leaving space between slices, and insert onion slices between and on top.

3-Make the cheese sauce: Now, make the cheese sauce by melting 2 tablespoons of salted butter in a pan over medium heat, then whisk in 1/4 cup of flour gradually. Slowly add 1 1/2 cups of unsweetened almond milk while whisking to avoid lumps, and bring it to a simmer until it thickens.

4-Add cheese and seasonings: Reduce the heat to low and stir in 8 ounces of shredded sharp cheddar cheese, 1/2 teaspoon garlic powder, 3/4 teaspoon salt, and freshly ground black pepper to taste. Pour this sauce evenly over the potatoes and onions to cover completely.

5-Bake covered then uncovered: Cover the dish with foil and bake for 45 minutes, then remove the foil, sprinkle with 1/2 cup Gruyere and 1/4 cup grated Parmesan, and bake uncovered for another 30-45 minutes until golden and tender.

6-Finish and serve: Finally, let it cool slightly, garnish with fresh chopped parsley, and serve. The total time is about 1 hour 45 minutes, with 30 minutes prep and 1 hour 15 minutes cooking. For vegan or low-calorie versions, swap in plant-based alternatives at the sauce step to keep things creamy.

Last Step:

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Notes

🥔 Use Yukon gold potatoes for creamy texture and buttery flavor.
🔪 Slice potatoes evenly about 1/8 inch thick for uniform cooking; a mandoline slicer helps.
🧀 Shred cheese by hand for better melting and adjust seasoning in the sauce before baking.

  • Author: Brandi Oshea
  • Prep Time: 30 minutes
  • Cook Time: 1 hour 15 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Nutrition

  • Serving Size: 1 serving
  • Calories: 256
  • Sugar: 1.6 grams
  • Sodium: multiple depending on added salt
  • Fat: 12.6 grams
  • Saturated Fat: 7.3 grams
  • Carbohydrates: 24 grams
  • Fiber: 3.5 grams
  • Protein: 13.2 grams