"Extra cinnamon-swirl dough slices like cookie dough -- and becomes crisp and caramelized in the oven, much like palmiers. Bake it on a parchment-lined baking sheet until very golden, about 12 minutes. You'll be thankful you did at your morning coffee break. For the decorating technique, see our step-by-step photos...."
INGREDIENTS
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3 tablespoons unbleached all-purpose flour, plus more for dusting
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4 tablespoons unsalted butter, room temperature, plus 2 tablespoons, refrigerated and cut into small cubes
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1/2 cup packed light-brown sugar
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1 teaspoon ground cinnamon
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1/2 teaspoon kosher salt
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4 pounds assorted apples, such as Jonagold, Cortland, Granny Smith, and Empire, peeled, cored, and cut into 1/4-inch slices
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2 tablespoons fresh lemon juice
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6 tablespoons granulated sugar
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1 teaspoon pure vanilla extract
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1 large egg, lightly beaten
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Fine sanding sugar, for sprinkling