Just made the Zebra cake and it is wonderful! Added 1/4 tsp of Fiori di Sicilia to both the cake and the icing (a cream cheese chocolate thin one). One technical point is to emphasize that the measure for each batter must be carefully cleaned-out when adding to the 'rings' so that the amounts come out evenly. I used Hershey's dark alkali process 'coco' with success -- it's nice and dark. It's great to surprise everyone when cutting it, my niece even guessed the name from its appearance.

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