All about Frankfurt Green Sauce Souvenirs focusing on Frankfurt's most famous dish Green Sauce seed packets Price € 6.99 per unitFresh is always best: This blend of seven herbs is the perfect addition to your garden! Frankfurt standard mustard and Frankfurt apple mustard Price: € 5.95 per glass (210 ml)An absolute culinary delight: Traditional Frankfurt mustard is semi-hot and made of seven local herbs. The apple mustard variety, meanwhile, is made with apples and balsamic vinegar. Serviettes featuring the seven-herbs motif Price: € 4.50 per packetStylish Frankfurt table decor: The ideal serviettes for a traditional Green Sauce meal.