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To make the starter: Weigh your flour; or measure it by gently spooning it into a cup, then sweeping off any excess. Combine the starter ingredients, cover, and leave at room temperature overnight.
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To make the dough: Mix the starter with the dough ingredients, kneading until elastic and satiny. Let the dough rise in a greased, covered bowl for 1 to 2 hours, until puffy.
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Divide the dough into three pieces. Flatten each piece into a 6" x 12" rectangle.
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Mix the reserved egg white with 1 tablespoon water. Brush it onto each portion of dough and reserve the excess.
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In a small bowl, mix the filling ingredients together. Sprinkle the filling evenly over each of the brushed rectangles of dough, leaving a 1/2" border bare along one of the long edges on each rectangle.
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Starting the filling-covered long edge, roll each rectangle into a log. Pinch the seam shut to seal the filling inside. Braid the logs together.
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Cover the braid, and allow it to rise for 1 to 2 hours, until puffy.
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Preheat the oven to 350°F.
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Brush the reserved egg white mixture on top of the braid. Sprinkle with pearl or sparkling sugar.
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Bake the cranberry-orange braid for 30 to 35 minutes, until golden brown; a digital thermometer inserted into the center should register 190°F.
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Remove the bread from the oven, and transfer it to a rack to cool.