INGREDIENTS
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5 cups bread flour, plus up to 1/2 cup more if needed
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3/4 cup plain instant mashed potato flakes, pulsed fine in a food processor
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1/4 cup granulated sugar
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1 tablespoon ground cinnamon
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1 tablespoon instant yeast
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2 teaspoons fine sea salt
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1 3/4 cups whole milk, at room temperature
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1 tablespoon vanilla extract
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2 large eggs, at room temperature
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4 tablespoons unsalted butter, cut into pieces, at room temperature, plus more for greasing the baking pan
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Nonstick cooking spray
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1 cup granulated sugar
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1 tablespoon ground cinnamon
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4 tablespoons unsalted butter, melted and cooled to room temperature
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Crumble, frozen, recipe follows
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2 cups confectioners' sugar
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1/4 cup whole milk
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1 teaspoon vanilla extract
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5 cups all-purpose flour
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1 pound unsalted butter, melted
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1 cup brown sugar
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1 cup granulated sugar
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1/2 teaspoon salt