Darvilles of Windsor Christmas Tea in a Box of 50 Tea Bags A black tea flavored with orange spice, Darvilles Christmas only appears once a year during the Holiday season. Darvilles created this very special blend of tea to celebrate Christmas. To make this unique tea, Darvilles selects the best teas from Kenya, Assam and Ceylon teas. A real rich and full-bodied tea. Only a tea maker that holds a Royal Warrant would be able to make a tea this good.