Easy Potatoes Au Gratin

User Reviews

4.7

27 reviews
Excellent
  • Prep Time

    15 mins

  • Cook Time

    1 hr 15 mins

  • Total Time

    1 hr 35 mins

  • Servings

    8

  • Calories

    127 kcal

  • Course

    Side Dish

  • Cuisine

    French, American

Easy Potatoes Au Gratin

Tender sliced potatoes baked to perfect with a creamy sauce made with milk, cheese, garlic, mustard, and onions.

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Ingredients

Servings
  • 2 pounds potatoes peeled and thinly sliced
  • Kosher salt and freshly ground black pepper to taste
  • 3 tablespoons olive oil divided
  • 1 medium yellow onion thinly sliced
  • 3 garlic cloves minced
  • 1 tablespoon wholegrain mustard
  • 3 tablespoons gluten-free flour or cornstarch
  • 2 1/2 cups almond milk
  • 1 teaspoon freshly grated nutmeg or to your taste
  • ¾ cup grated gruyere cheese
  • fresh thyme to garnish
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Instructions

  1. Preheat the oven to 350F and spray a baking dish with cooking oil spray or olive oil.
  2. Add sliced potatoes and season with salt and pepper. Drizzle 2 tbsp oil and toss well to coat. Place in the preheated oven and bake for 15 minutes, or until potatoes begin to soften and the sauce is ready.
  3. Meanwhile, heat a rimmed pan over medium heat and drizzle with 1 tbsp oil. Sauté the onion and garlic for 2-3 minutes, or until it softens.
  4. Stir in the mustard and flour. Slowly pour the milk and whisk until sauce is thickened and smooth, 2-3 minutes.
  5. Season with salt, pepper, and nutmeg.
  6. Remove the potatoes from the oven and pour over the sauce, stirring gently to mostly cover and coat.
  7. Top with shredded cheese. (You can now cool and refrigerate the dish for make-ahead.)
  8. Return to the oven and bake for 60 minutes, or until potatoes are super tender, bubbly, and golden-brown on top. (Cooking time may vary depending on the size of the thickness of your potato slices.)
  9. Garnish with fresh thyme before serving.

Notes

  • Oven temperature: Please note that everyone's will be different and cooking time will vary. If you try a higher temperature of 400F it will take 35-40 minutes. At 350F it will need 50-60 minutes depending.
  • Milk: we used almond milk, but you may use any other milk of choice.
  • we used almond milk, but you may use any other milk of choice.
  • Mustard: whole grain mustard was used but you may use Dijon mustard
  • Cheese: If you don't like gruyere or want to use another cheese, consider using a mix of sharp cheddar and parmesan, or gouda.
  • Potatoes: consider using Yukon gold potatoes 
  • Flour: Any flour would work for this recipe. Feel free to use cornstarch too. We love to use Whole wheat as well.
  • Bake time: Don't rush them, they need a good one hour in the oven depending on your oven

Nutrition Information

Show Details
Calories 127kcal (6%) Carbohydrates 4g (1%) Protein 5g (10%) Fat 10g (15%) Saturated Fat 3g (15%) Cholesterol 14mg (5%) Sodium 165mg (7%) Potassium 35mg (1%) Fiber 1g (4%) Sugar 1g (2%) Vitamin A 117IU (2%) Vitamin C 1mg (1%) Calcium 226mg (23%) Iron 1mg (6%)

Nutrition Facts

Serving: 8Serving

Amount Per Serving

Calories 127 kcal

% Daily Value*

Calories 127kcal 6%
Carbohydrates 4g 1%
Protein 5g 10%
Fat 10g 15%
Saturated Fat 3g 15%
Cholesterol 14mg 5%
Sodium 165mg 7%
Potassium 35mg 1%
Fiber 1g 4%
Sugar 1g 2%
Vitamin A 117IU 2%
Vitamin C 1mg 1%
Calcium 226mg 23%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.

Genuine Reviews

User Reviews

Overall Rating

4.7

27 reviews
Excellent

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