Attention to the spiritual flourishing of young children contributes to their well-being, both their being and their becoming, but much-needed research in this area poses many challenges. The National Institute for Christian Education Research is undertaking a funded research project investigating the spiritual flourishing of young children in church toddler groups in England. This article reports on a scoping study which investigated the feasibility of a major research study in this area. The study was multifaceted, it involved clarifying terminology, evaluating previous research studies and early years research methods, and led to the development of a potential research framework. The article defines spiritual flourishing as a dynamic state of being, revealed in nurturing the right relationship with self, others, creation, and the transcendent. The findings propose an understanding of children’s spirituality as relational, based in the here and now, and shaped by the environment. Secondly, an exploration of midweek church toddler groups, a common feature across the denominations, through the lens of belonging, behaving, and believing reveals a potential critical contribution to young children’s spiritual flourishing or faith development. Thirdly, following an evaluation of potential effective research methods, the discussion highlights the value of an interdisciplinary study, the potential challenges and proposes a research framework. The article draws attention to the urgent need for more research to understand what contributes to young children’s spiritual flourishing within a Christian context.