"I cook the squash with garlic and a little nutmeg, then put it in a gratin dish with a topping of crunchy bread crumbs and Gruyère cheese...."
INGREDIENTS
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3 tablespoons unsalted butter (divided)
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Good olive oil
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3 cups halved and thinly sliced yellow onions ((2 large))
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1 tablespoon minced garlic ((3 cloves))
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2 pounds butternut squash (peeled, halved, seeded, and sliced crosswise 1/8 inch thick)
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1/2 teaspoon ground nutmeg
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Kosher salt and freshly ground black pepper
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1/2 cup heavy cream
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2 cups coarse fresh bread crumbs from a country loaf
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1/2 cup grated Gruyère cheese ((2 ounces))