Catalan Tomato Bread

My first meal in Barcelona—at the venerable Los Caracoles restaurant in the medieval quarter—began with this simple bread appetizer, and scarcely a day went by when I wasn’t served some variation of it. Catalan Tomato Bread belongs to an ancient family of grilled breads that includes Italian bruschetta and Indian naan. It offers irrefutable proof that the best dishes are often the easiest.

At its most rudimentary, pa amb tomàquet consists simply of a slice of grilled bread ru