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
Directions
Step 1 –Preheat your oven to 350 degrees F.
Step 2 –Grease a 2-quart, oven-safe dish.
Step 3 –Using a large pan over low heat on the stove-top, melt the butter.
Step 4 –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.
Step 5 –Then, gradually add in the milk and bring it to a boil.
Step 6 –Cook and stir the mixture for about 2 minutes, until it has thickened.
Step 7 –Remove the pan from the heat.
Step 8 –Stir in the cheddar cheese until it has completely melted.
Step 9 –Add in the potatoes and onion.
Step 10 –Pour the mixture into the prepared dish.
Step 11 –Cover the dish and bake the potatoes for approximately 1 hour.
Step 12 –Then, uncover and continue baking until the potatoes are fork-tender, about 30-40 minutes.
Step 13 –Remove from the oven and garnish with more pepper.
Step 14 –Serve hot.