THE York mum behind the craze for Terry s Chocolate Orange gonks says interest in the whacky festive treats has rocketed since she launched her Facebook group and appeared in The Press. Mum-of-two Chelle Holmes set up a Facebook group and shared a video tutorial on how to make a Terry s Chocolate Orange gonk just five weeks ago. An article on the group and the craze appeared in The Press last week and was followed up by other media. Chelle, who runs her own cake decorating business, said everything just went berserk with thousands of enthusiastic crafts people joining in and sharing their handiwork on the Facebook page: Terry s Chocolate Orange Decorating UK, which now has almost 9,000 members.