"An outstanding quiche relies on a few simple elements: a creamy egg custard, buttery homemade crust, and flavorful cheese and vegetables like spinach. This savory spinach and Gruyere quiche doesn't disappoint. Check your fridge before shopping, since you probably already have most of the ingredients for a spinach quiche at home...."
INGREDIENTS
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1 tablespoon butter
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3 shallots, minced
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3 bunches flat-leaf spinach, thick stems removed and leaves roughly chopped
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Coarse salt and ground pepper
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8 ounces Gruyere cheese, grated (about 2 cups)
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1 recipe Basic Pie Dough, fitted into two 9-inch pie plates
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8 large eggs
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3 cups half-and-half
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1/8 teaspoon ground nutmeg