How to Make Cheesy au Gratin Potatoes

Cheesy Au Gratin Potatoes are a timeless comfort dish, combining tender sliced potatoes with a rich, cheesy sauce that’s baked to golden perfection. This lighter version keeps all the creamy goodness and savory flavor you love, but with fewer calories and less fat. Perfect for family dinners or holiday gatherings, these au gratin potatoes bring warmth and indulgence without the heaviness.

Why You’ll Love This Recipe

Classic Comfort Food – Creamy, cheesy, and satisfying in every bite.
Lighter Ingredients – Made with reduced-fat cheese and milk for a healthier twist.
Easy to Prepare – Simple layering and straightforward baking.
Perfect for Any Occasion – A versatile side dish that pairs well with meats and veggies.

Ingredients

• 2 lbs russet potatoes, peeled and thinly sliced
• 1½ cups reduced-fat shredded cheddar cheese
• 1½ cups unsweetened almond milk (or low-fat milk of choice)
• 2 tbsp light butter
• 2 tbsp all-purpose flour
• 1 tsp garlic powder
• ½ tsp onion powder
• ½ tsp salt
• ¼ tsp black pepper
• ¼ cup finely chopped onion (optional)

Instructions

Prepare the Potatoes
Preheat oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.

Make the Cheese Sauce
In a medium saucepan, melt the light butter over medium heat. Stir in the flour and cook for 1-2 minutes, whisking constantly to form a roux. Slowly whisk in the almond milk, continuing to whisk until the sauce thickens, about 4-5 minutes. Remove from heat and stir in 1 cup of the shredded cheddar cheese until melted and smooth. Add garlic powder, onion powder, salt, and pepper.

Layer the Dish
Arrange half of the sliced potatoes in the bottom of the prepared baking dish. Sprinkle half of the chopped onions (if using) over the potatoes. Pour half of the cheese sauce over the top. Repeat with the remaining potatoes, onions, and cheese sauce.

Top and Bake
Sprinkle the remaining ½ cup of shredded cheddar cheese evenly over the top. Cover with foil and bake for 40 minutes. Remove the foil and bake for an additional 15 minutes, or until the potatoes are tender and the top is golden and bubbly.

Cool and Serve
Let the dish cool for 5 minutes before serving.

Nutritional Information (Per Serving)

Calories: 180
Protein: 8g
Fat: 7g
Carbohydrates: 22g
Sugar: 2g
Fiber: 3g

Tips for Success

• Use Sharp Cheddar – A sharper cheese adds more flavor without extra fat.
• Slice Evenly – Uniform potato slices ensure even cooking.
• Don’t Skip the Resting Time – Letting it cool slightly helps the sauce thicken for easier serving.
• Add Herbs – Fresh thyme or rosemary make lovely additions for extra flavor.

Why This Recipe Works

This recipe balances creamy, cheesy indulgence with lighter ingredients to deliver a healthier take on classic au gratin potatoes. The homemade cheese sauce thickens perfectly without heavy cream, and layering the potatoes ensures every bite is rich and flavorful.

Cheesy Au Gratin Potatoes bring comfort and flavor to your table with a lighter approach. Creamy, cheesy, and golden brown, they make a delicious side dish that fits perfectly with any meal—whether a weeknight dinner or a festive occasion.