Delicatessens vary in style in Dublin. If you are simply looking for you €2 sandwich visit the deli counter in Dublin supermarkets and convenience stores.
If you fancy something a little more refined like your Gateaux Diane well then go to one of the speciality delicatessens features in this site.
If you're thinking of throwing a 'going home' or coming over; party why not let one of these delis do the catering for you. Catering is a speciality of Dublin's top Delicatessens