Potatoes Au Gratin

Name: Potatoes Au Gratin
Total time: 3 h 50 min
Ingredients: 2 ½ pounds red potatoes; 1 onion; 3 tablespoons butter; 3 tablespoons flour; 1 teaspoon dry mustard; 2 cups milk; 1 cup cheddar cheese shredded; ½ cup gruyere cheese shredded; salt & pepper to taste

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Total: 230

Servings: 8

Cost: $4.34 /serving

Ingredients

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Instructions

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Step 1

Preheat oven to 400°F.

Step 2

Wash potatoes and slice into ⅛" thin slices. Slice onion as thin as possible.

Step 3

Layer potatoes and onions in little stacks. Place stacks upright in a greased casserole 2.5qt to 3qt dish.

Step 4

Melt butter & flour in a saucepan and cook 2-3 minutes. Add seasonings and milk. Whisk over medium heat until thick and bubbly. Remove from heat and stir in cheeses until melted.

Step 5

Spoon cheese sauce over potatoes. Cover with foil (sprayed with cooking spray) and bake 60 minutes.

Step 6

Remove foil and bake an additional 20-30 minutes or until lightly browned and potatoes are cooked. Cool 15 minutes before serving.