Fostering stability is at the core of foster care as it is the pathway for children to experience enduring relationships (Vanderwill et al., 2020). However, in practice, achieving stability can be challenging as it is a multifaceted phenomenon. A unique research collaborative was set up in 2016 between Tusla, the Child and Family Agency and University College Cork (UCC) that had an overarching aim to reduce fostering instability. The research project sought to contribute to addressing the challenges of achieving fostering stability by applying the approach of trauma-informed care. The research produced an evidenced-based psychoeducational intervention that supported the capacity of foster carers to provide children with trauma-informed care. This paper explores the research in relation to its contribution to supporting fostering stability.