Food is an attractive communication tool, which can draw public attention to various social issues. In our project we try to explore such an issue over taste interactions and empathy inscribed in food. We have designed 'StreetSauce', an interactive service with edible interface that conveys public engagement in the problem of female homelessness. Within this paper, we present preliminary results of our research related to the StreetSauce project. The data sampled so far come from interviews, participant observation at design probes, and online questionnaire. We aim to examine the applicability of food and human-computer interaction (HCI) convergence for the support of social engagement.