![](https://cdn.statically.io/img/www.allrecipes.com/thmb/6qaIR2cNEedFwNa40ojFxFYcaPw=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/4132196-1c499ac355eb4746949a88d57a55ba1c.jpg)
Ingredients
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cooking spray
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1 ½ cups grated Parmesan cheese
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2 tablespoons minced fresh rosemary
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2 cloves garlic, minced
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3 ½ pounds red potatoes
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3 tablespoons butter
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3 tablespoons all-purpose flour
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2 cups whole milk
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½ teaspoon salt
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1 teaspoon olive oil
Directions
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Preheat the oven to 400 degrees F (200 degrees C). Coat an 8-inch baking dish cooking spray.
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Mix Parmesan cheese, rosemary, and garlic together in a bowl.
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Slice 3 or 4 potatoes using a mandolin on the thinnest setting. Slice remaining potatoes using a slightly thicker setting on the mandolin.
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Line the bottom of the prepared baking dish with thin potato slices, overlapping them to create a layer that is 2 to 3 slices deep. Stand remaining thin slices along the sides of the baking dish so that half an inch sticks over the rim, overlapping them to create a layer that is 4 slices deep.
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Spread 1/3 of the thicker potato slices in the baking dish. Sprinkle 1/3 of the Parmesan cheese mixture on top. Repeat once more. Arrange remaining potato slices in the baking dish. Reserve 1/3 of the Parmesan cheese mixture.
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Melt butter in a saucepan over medium heat; whisk in flour. Pour in milk; cook, occasionally stirring, until sauce thickens, 5 to 6 minutes. Stir in salt.
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Shift potato slices in a few places with a knife to create wells for the sauce to flow through. Pour sauce evenly over potato slices in the baking dish. Sprinkle remaining 1/3 of the Parmesan cheese mixture on top. Brush potato edges sticking out of the baking dish with olive oil.
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Bake in the preheated oven until potatoes are soft and edges are crusted, 1 hour to 1 hour and 15 minutes.
Nutrition Facts (per serving)
395 | Calories |
15g | Fat |
50g | Carbs |
16g | Protein |
Nutrition Facts | |
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Servings Per Recipe 6 | |
Calories 395 | |
% Daily Value * | |
Total Fat 15g | 20% |
Saturated Fat 9g | 44% |
Cholesterol 41mg | 14% |
Sodium 590mg | 26% |
Total Carbohydrate 50g | 18% |
Dietary Fiber 5g | 17% |
Total Sugars 7g | |
Protein 16g | 32% |
Vitamin C 23mg | 26% |
Calcium 346mg | 27% |
Iron 2mg | 13% |
Potassium 1361mg | 29% |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.