Methodological possibilities into exploring the reproduction of gender in parliaments, executives, and political parties are plural and exciting. Given that a performative approach to gender involves observing how gender is repeated over time; situates agency in institutional context; and constantly revises new questions and areas of analysis, parliamentary ethnography is a pertinent methodology to employ since it involves immersive methods. This chapter provides a standalone methodological chapter detailing what a parliamentary ethnography might involve and maps the ‘state of the art’ of parliamentary ethnography. The chapter discusses the logistics of the ethnography in terms of entry and access, participation, recording, elite interviews and documentary analysis. Finally, it maps the ‘field’ by introducing three ‘working worlds’ in the UK House of Commons—that is, the configuration of actors in the parliamentary workplace: MPs, the parliamentary administration and parliamentary researchers. The methodological chapter is combined with a methodological appendix which grounds this discussion in meta-theory, power relations and reflexivity.