This is Mark Bittman's favourite sandwich ever: a flauta d’ibéric jabugo at Cafe Viena on La Rambla in Barcelona. I can attest to the fact that it is one of the best sandwiches I've ever had! The ham is just delicious and the bread is crispy without being too hard. Just perfect!

http://willtravelforfood.com/2011/08/17/tapas-bars-barcelona/