Rich tea is a type of sweet biscuit; the ingredients generally include wheat flour, sugar, vegetable oil and malt extract.Originally called Tea Biscuits, they were developed in the 17th century in Yorkshire, England for the upper classes as a light snack between full-course meals. Cadbury's variant of the Rich tea is coated in chocolate, similar to a digestive. They are also sold as a finger variety and, as Rich Tea Creams, a long thin rectangular version with vanilla cream sandwiched between two biscuits (made by Fox's).