The Cheesiest Oven-Baked Au Gratin Potatoes (Scalloped Potatoes)

heavy cream

🥗Healthier: Greek yogurt

💰Cheaper: milk + cornstarch

Greek yogurt reduces calories while maintaining creaminess

gruyere cheese

🥗Healthier: emmental cheese

💰Cheaper: mozzarella cheese

Emmental is a more affordable option with similar melting properties.

Peel your potatoes.

Slice onions into thin slices and short enough to layer on top of the potato slices.

Using a mandolin, make nice slices of the potatoes.

When you have enough stacks, flip them sideways holding them in place so the potato stacks are standing on sides, not laying flat. Place inside a casserole dish.

In a saucepan, melt the butter.

Add the flour and whisk until it's a thicker roux-like consistency.

Add the milk and season with salt and pepper, then whisk.

Take the saucepan off the heat and add the cheeses, whisking to blend.

Pour the cheese sauce on top of the potatoes in the casserole.

Wrap the casserole dish with aluminum foil and bake at 400°F for 60 minutes.

Take the aluminum foil off and bake for an additional 20 minutes or broil until golden brown on top.

Garnish with thyme or parsley.

Cooking Techniques

Equipment Needed

Spice Level:

Allergens