Classic Potato and Leek Gratin – Grand Fete

Name: Classic Potato and Leek Gratin – Grand Fete
Ingredients: 2 lbs Idaho potatoes (about 7-8 potatoes), washed, peeled, and thinly sliced with a mandoline; 5 tablespoons butter, divided; 3 small leeks, green parts removed, finely sliced; 1 tablespoon rosemary, minced; 4 cloves garlic, minced; 1/4 cup all-purpose flour; 3 cups whole milk; 2 teaspoons kosher salt; 1/4 teaspoon black pepper; 1-1/2 cup grated Gruyère, plus 2 tablespoons reserved as topping

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In this classic dish, thinly sliced potatoes are layered with a distinctive Mornay sauce. Mornay sauce is a Béchamel sauce with the addition of Gruyère cheese. The additions of savory leeks,...

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Ingredients

2 lbs Idaho potatoes (about 7-8 potatoes), washed, peeled, and thinly sliced with a mandoline
5 tablespoons butter, divided
3 small leeks, green parts removed, finely sliced
1 tablespoon rosemary, minced
4 cloves garlic, minced
1/4 cup all-purpose flour
3 cups whole milk
2 teaspoons kosher salt
1/4 teaspoon black pepper
1-1/2 cup grated Gruyère, plus 2 tablespoons reserved as topping