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 19th century in Yorkshire, England for the upper classes as a light snack between full-course meals.
McVitie's has used the brand name "Rich Tea" since 1891 and remains the most well-known manufacturer in the UK.
The Morning Coffee biscuit is rectangular rather than round but is similar to the rich tea.
In 2011 Prince William chose a groom's cake for his wedding reception made from 1,700 McVitie's rich tea biscuits and 17 kilograms (37 lb) of chocolate.