ZWT6 Denmark. There are hundreds of combinations and varieties of smørrebrød available but this is a classic. No access to a Danish supermarket? No problem! You'll likely need to find a substitute for the dark Danish bread (‘rugbrød’) that most Danish sandwiches are made with. Your best is to buy the darkets, heaviest bread sold at your local bakery. Be sure to slice it thinly when making the sandwiches. From http://www.thecopenhagenreport.com.