Simple Cheddar Au Gratin Potatoes

Au Gratin potatoes are the height of rustic elegance. While “Scalloped Potatoes” typically focus on a simple cream sauce, “Au Gratin” takes it a step further by incorporating a generous amount of cheese and a toasted, crusty topping. This recipe utilizes the natural starch of the potatoes to thicken a sharp cheddar base, creating a cohesive, melt-in-your-mouth texture. It’s a slow-baked labor of love that results in a dish both visually stunning and deeply satisfying.

Why Everyone Loves This Recipe

The Texture Contrast: You get the soft, buttery interior paired with a crispy, caramelized cheese crust.
Pure Cheese Indulgence: Using a sharp cheddar provides a bold, savory flavor that pairs perfectly with the neutral potato.
The Ultimate Side Dish: It complements everything from roast beef and holiday ham to a simple grilled chicken breast.
Crowd Favorite: It’s rare to find a guest who can resist a second helping of cheesy potatoes.

Ingredient Notes & Details

Potatoes: Yukon Gold potatoes are highly recommended for their naturally buttery flavor and ability to hold their shape. Peel them and slice them into uniform 1/8-inch thick rounds.
Sharp Cheddar Cheese: Freshly grated cheese is essential. Pre-shredded bags contain anti-clumping agents that can prevent the sauce from becoming perfectly smooth.
Whole Milk and Heavy Cream: A blend of both ensures the sauce is rich enough to coat the potatoes without being overly heavy.
Aromatics: Diced onions and minced garlic provide the savory backbone to the cream sauce.
The Roux: A simple base of butter and flour is used to ensure the sauce stays thick and doesn’t “break” during the long bake.