Best Ever Potatoes au Gratin

Name: Best Ever Potatoes au Gratin
Ingredients: 5 tablespoons unsalted butter, divided; 1 sweet onion, thinly sliced; 3 garlic cloves, minced; 1 tablespoon grainy mustard; 2 cups half-and-half; 2 pounds potatoes, peeled and thinly sliced; Salt and freshly ground black pepper; 1/2 teaspoon freshly grated nutmeg; Gruyère

Best Ever Potatoes au Gratin was pinched from <a href="http://www.purewow.com/recipes/Potatoes-au-Gratin" target="_blank">www.purewow.com.</a>

INGREDIENTS

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5 tablespoons unsalted butter, divided

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1 sweet onion, thinly sliced

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3 garlic cloves, minced

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1 tablespoon grainy mustard

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2 cups half-and-half

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2 pounds potatoes, peeled and thinly sliced

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Salt and freshly ground black pepper

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1/2 teaspoon freshly grated nutmeg

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Gruyère

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