"Top chai-spiced peach cobbler with a colorful pistachio crumble topping...."
INGREDIENTS
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3/4 cup all-purpose flour
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1/2 cup rolled oats
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1/2 cup crushed raw, unsalted pistachios
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1½ teaspoons ground ginger
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3/4 teaspoons ground cloves
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1/2 teaspoon freshly ground nutmeg
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1/2 cup granulated sugar
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8 tablespoons (1 stick) salted butter, cut into even pieces
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4 tablespoons (1/2 stick) unsalted butter
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3 pounds (about 9 cups) frozen peaches, thawed in the refrigerator overnight
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1½ cups light brown sugar
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1 tablespoon ground cinnamon
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1 teaspoon ground allspice
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1/2 teaspoon ground cardamom
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1/2 teaspoon freshly ground black pepper
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vanilla ice cream, for serving (optional)
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whipped cream, for serving (optional)