What is the correct way to say ‘espresso’?

Question: 
I know this is not exactly a wine question, but what is the correct way to spell the name of that strong Italian coffee? Espresso or expresso? Please settle an argument.

Answer: 
It depends where you are. The original Italian spelling is with the ‘s’ as ‘espresso’. The Americans, however, tend to use the ‘x’ and write ‘expresso’. Most South African restaurants and coffee shops seem to stick to the original ‘espresso’.