Layers upon layers of tender potatoes and sweet onion sandwiching a creamy, cheesy sauce? Sounds heavenly! In fact, Simple Au Gratin Potatoes actually look like scoops of golden brown clouds. It’s a fluffy, hearty side dish with an aroma that brings people to the dining room. Simple Au Gratin Potatoes makes a perfect accompaniment to Thanksgiving dinner, steak, pork, chicken...anything you can imagine!
Ingredients• 3 tablespoons butter • 3 tablespoons all-purpose flour • 1 1/2 teaspoons salt • 1/8 teaspoon pepper, with more for optional garnish • 2 cups milk, not skim • 1 cup cheddar cheese, shredded • 5 cups potatoes, peeled and thinly sliced • 1/2 cup onion, chopped
Preheat your oven to 350 degrees F.
Grease a 2-quart, oven-safe dish.
Using a large pan over low heat on the stove-top, melt the butter.
Once the butter is melted, stir in the flour, the salt, and the pepper until the mixture is smooth and the raw flour smell disappears.
Then, gradually add in the milk and bring it to a boil.
Cook and stir the mixture for about 2 minutes, until it has thickened.
Remove the pan from the heat.
Stir in the cheddar cheese until it has completely melted.
Add in the potatoes and onion.
Pour the mixture into the prepared dish.
Cover the dish and bake the potatoes for approximately 1 hour.
Then, uncover and continue baking until the potatoes are fork-tender, about 30-40 minutes.
Remove from the oven and garnish with more pepper.