Rich Tea       
noun [ C ] UK trademark (also rich tea) uk/ˌrɪtʃ ˈtiː/ us/ˌrɪtʃ ˈtiː/ (also rich tea biscuit)
 富贵佐茶饼干(品牌名)
a brand name for a type of plain, sweet biscuit 
  It's time for a cuppa and a Rich Tea.  现在该喝杯茶和吃点富贵佐茶饼干了。 
 This delicacy is made from crumbled rich tea biscuits and dark chocolate. 这种美味来自压碎的富贵佐茶饼干和黑巧克力。 
 - More examples
 - The manufacturer started to put designs of the back of the Rich Teas.
 - Can you buy me a packet of rich teas?
 - He was wearing a suit the colour of rich tea biscuits.