INGREDIENTS
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Vegetable oil for greasing
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2 cups packed light brown sugar (14 oz)
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1 cup heavy cream
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1/2 stick (1/4 cup) unsalted butter
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1/4 teaspoon salt
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1/4 cup plus 1 teaspoon dark rum
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1/4 teaspoon vanilla
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Special equipment: parchment paper; a candy or deep-fat thermometer