Qualitatively eliciting historically marginalized populations' beliefs, values, and preferences is critical to capturing information that authentically characterizes their experiences and can be used to develop culturally-responsive interventions. Eliciting these rich perspectives requires researchers to have highly effective qualitative interviewing guides, which can be optimized through community engagement. However, researchers have had little methodological guidance on how community member engagement can aid development of interview guides. The purpose of this article is to provide a series of steps, each supported by a case example from our work with African American family caregivers, for developing an interview guide through community engagement. We conclude by highlighting how involving historically marginalized community members in these early stages of research study development can build trust, research partnerships, and acknowledge their contribution to the development of new knowledge.