The debate on gastronomic culture and identity, the national heritage, national products and gastronomic nationalism, is one of the most active and popular in the contemporary public discourse. The increased importance of different identities in contemporary networked society drives the popularity of these topics. As a form of the intangible heritage, gastronomic culture is an evolving system that easily links past and present societies. In this way, the gastronomic heritage and the history of gastronomy are easily transferred to contemporary culture, and become the basis for various identities. Given that the intangible heritage operates in society through tangible representations, and that in gastronomic culture one of the most visible representations is dishes, this study analyses the communication of one of them, šaltibarščiai (cold soup), on the social network Facebook. The study aims to determine how the representation of a specific intangible element of the heritage is used to construct the Lithuanian national identity. The research has identified the most important topics of discussion, the discourses involved, and elements of the reality that are important for constructing the national identity and their interrelationships.