Side Dish · Tested at home

Creamy Au Gratin Potatoes

Name: Creamy Au Gratin Potatoes
Prep time: 30 min
Cook time: 1 h 30 min
Total time: 2 h
Yield: 4 servings; one 2-quart casserole
Ingredients: 4 medium russet potatoes, cut into 1/4-inch-thick slices; 1 medium onion, sliced into rings; Salt and ground black pepper to taste; 3 tablespoons butter; 3 tablespoons all-purpose flour; 1/2 teaspoon salt; 2 cups milk; 1 1/2 cups freshly shredded Cheddar cheese

Original recipe by Cathy Martin · Allrecipes
The Best I’ve Made · Selected by Justin. Ingredients retained; functional instructions independently written.

Sliced russet potatoes and onion baked beneath a homemade Cheddar sauce.

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Prep30 minutes

Cook1 hour 30 minutes

Total2 hours

Makes4 servings; one 2-quart casserole

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Ingredients

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4 medium russet potatoes, cut into 1/4-inch-thick slices
1 medium onion, sliced into rings
Salt and ground black pepper to taste
3 tablespoons butter
3 tablespoons all-purpose flour
1/2 teaspoon salt
2 cups milk
1 1/2 cups freshly shredded Cheddar cheese

Turn up the heat

Let’s cook.

Set the oven to 400°F (200°C). Butter the inside of a 2-quart casserole dish and have the ingredients ready.
Place half the potato slices in the dish and season them with salt and pepper. Distribute the onion rings over that layer, cover with the remaining potatoes, and season once more.
In a medium saucepan over medium heat, melt the butter. Whisk in the flour and 1/2 teaspoon salt; keep whisking for about 1 minute to cook the flour.
Whisk the milk into the saucepan in roughly 1/4-cup additions, blending each addition completely before adding more. Continue whisking over the heat for 3–5 minutes, until the sauce thickens.
Add the freshly shredded Cheddar and stir continuously for 30–60 seconds, until the cheese has melted into a smooth sauce.
Distribute the sauce over the potatoes and seal the dish tightly with aluminum foil. Bake for about 1 1/2 hours, until the sauce bubbles and a knife passes through the potatoes without resistance.
For an optional browned surface, take off the foil for the final 15–20 minutes of baking and watch that the sauce does not dry out. Allow the casserole to stand briefly before serving.

Recipe Notes

Butter for greasing the 2-quart casserole is specified in the method without a separate quantity. The measured 3 tablespoons butter is used in the sauce. Bake at 400°F (200°C).

From Justin’s kitchen

I can eat potatoes all day! These are excellent.

Creamy Au Gratin Potatoes

Ingredients

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Recipe Notes

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