Hi PJ You have two versions of the recipe apparently on the website. Look at "http://www.kingarthurflour.com/bakealong/chocolate-babka.pdf" under the Filling section definitely has "FILLING 1 1/2 cup sugar 1/2 teaspoon ground cinnamon 1/3 cup Double-Dutch Dark Cocoa or Dutch-process cocoa powder ... One of the pages send you to this link to read the recipe I made two passes at these all were delicious. The first pair I made had the nice rise but when cooled the middle of the loaf sunk problem. The second batch held the shape well. "

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