Potato-Fennel Gratin

Name: Potato-Fennel Gratin
Yield: 10
Ingredients: 2 small fennel bulbs; 1 yellow onion, thinly sliced; 2 tablespoons good olive oil; 1 tablespoon unsalted butter; 2 pounds russet potatoes (4 large potatoes); 2 cups plus 2 tablespoons heavy cream; 2 1/2 cups grated Gruyère cheese (1/2 pound); 1 teaspoon kosher salt; 1/2 teaspoon freshly ground black pepper

INGREDIENTS

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2 small fennel bulbs

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1 yellow onion, thinly sliced

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2 tablespoons good olive oil

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1 tablespoon unsalted butter

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2 pounds russet potatoes (4 large potatoes)

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2 cups plus 2 tablespoons heavy cream

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2 1/2 cups grated Gruyère cheese (1/2 pound)

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1 teaspoon kosher salt

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1/2 teaspoon freshly ground black pepper

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