White Cheddar and Parmesan Potato Gratin

Indulge in layers of creamy, cheesy perfection with this White Cheddar and Parmesan Potato Gratin—a classic comfort food elevated with rich flavors and a golden, bubbly crust. Thinly sliced Russet potatoes are bathed in a luscious blend of heavy cream, whole milk, and garlic, then generously layered with sharp white cheddar and nutty Parmesan cheese. A hint of nutmeg adds depth, while a final topping of melted cheese creates a beautifully caramelized finish. Perfect for holidays, dinner parties, or as a crowd-pleasing side dish, this gratin pairs beautifully with roasted meats or a fresh salad. Ready to tantalize your taste buds in just under two hours, it’s a hearty yet elegant dish that’s sure to impress!

Nutriscore Rating: 60/100

Prep Time:25 mins

Cook Time:75 mins

Total Time:100 mins

Servings: 8

Ingredients

• 3 pounds Russet potatoes
• 2 cups Heavy cream
• 1 cup Whole milk
• 2 cloves Garlic
• 2 tablespoons Unsalted butter
• 2 cups White cheddar cheese (shredded)
• 1 cup Parmesan cheese (grated)
• 1 teaspoon Salt
• 0.5 teaspoon Black pepper
• 0.25 teaspoon Nutmeg (optional)
• 2 tablespoons Fresh parsley (chopped, optional)

Directions

Step 1

Preheat your oven to 375°F (190°C). Grease a 9x13-inch baking dish with butter or non-stick cooking spray.

Step 2

Peel the potatoes and slice them thinly into 1/8-inch rounds. Use a mandoline or a sharp knife for uniform slices. Set them aside in a bowl of cold water to prevent browning.

Step 3

In a medium saucepan, combine the heavy cream, whole milk, and minced garlic. Heat over medium heat until just warm (do not boil). Turn off the heat and set aside.

Step 4

Melt the unsalted butter in a small skillet over medium heat, then brush a layer over the bottom of the baking dish to enhance flavor.

Step 5

Layer one-third of the potato slices evenly across the bottom of the baking dish. Sprinkle with a little salt, pepper, and nutmeg (if using).

Step 6

Spread one-third of the white cheddar cheese and Parmesan cheese evenly over the potatoes. Pour about one-third of the warm cream mixture over the layer.

Step 7

Repeat the layering process two more times: potatoes, seasoning, cheese, and cream. Ensure the topmost layer is generously covered with remaining cheese for a golden crust.

Step 8

Cover the baking dish tightly with aluminum foil and bake for 45 minutes in the preheated oven.

Step 9

Remove the foil and continue to bake uncovered for an additional 25-30 minutes, or until the top is golden brown and bubbly, and the potatoes are tender when pierced with a knife.

Step 10

Allow the gratin to cool for 10 minutes before serving. Garnish with fresh parsley for a pop of color and added freshness, if desired.

Nutrition Facts

Serving size	(2589.8g)

Amount per serving	% Daily Value*
Calories	5169.3

Total Fat 330.8g	0%
Saturated Fat 205.6g	0%
Polyunsaturated Fat 0.3g
Cholesterol 1001.8mg	0%
Sodium 7864.8mg	0%
Total Carbohydrate 330.5g	0%
Dietary Fiber 24.2g	0%
Total Sugars 27.7g
Protein 194.6g	0%

Vitamin D 155.4IU	0%
Calcium 4748.3mg	0%
Iron 17.1mg	0%
Potassium 8439.2mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 58.6%

Protein: 15.3%

Carbs: 26.0%