Rich Tea because McVities British biscuits are the best to dunk.....just don't leave them to long!! ; )
”They were first created in Yorkshire back in the 17th century and were originally called Tea Biscuits. The upper classes used to snack on them between meals to keep hunger pangs at bay. Now, Rich Teas are known for being the most dunkable biscuit, due to their sweet yet plain flavor.