INGREDIENTS
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2 1/2 sticks (20 tablespoons) unsalted butter, room temperature, plus more for pans
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1 vanilla bean, halved lengthwise
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2 pounds Granny Smith apples, peeled, cored, and grated on the large holes of a box grater (4 cups)
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1/2 cup apple cider
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2 1/2 cups granulated sugar
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3 3/4 cups all-purpose flour, plus more for dusting
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2 1/2 teaspoons baking powder
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2 1/2 teaspoons baking soda
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1 teaspoon salt
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1 1/2 teaspoons ground cinnamon
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1/2 teaspoon ground nutmeg
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1/4 teaspoon ground ginger
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1/4 cup packed dark-brown sugar
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4 large eggs, room temperature
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1/2 cup sour cream
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1 1/4 cups pecan halves (5 ounces), toasted dark and finely ground in a food processor
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Brown Sugar Swiss Meringue Buttercream
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Gold Marzipan Pumpkins, Leaves, and Acorns