To be able to prepare this popular Catalan recipe in an artisanal way you can go to the market, select the best fresh vegetables - namely aubergines, onions and piquillo peppers -, roast them, chop them and dress them with extra virgin olive oil, or you can let yourself be tempted by the one they have already cooked in "Conservas Artesanas Rosara" following that same recipe, as natural as exquisite!.