This study evaluated the impact of training two practitioners to create and implement video-based intervention (VBI) to teach vocational skills to three autistic young adults in authentic workplace settings, via a multiple-probe single-case research design. A behavioral skills training (BST) package was used to train the practitioners to create and implement VBI. Practitioners' fidelity of VBI creation and implementation was also evaluated via pretest-posttest. There was a functional relation between the practitioner-created and -implemented VBI and the autistic young adults' vocational skill acquisition, with all three reaching 100% independent accuracy and demonstrating maintenance of the learned vocational skills. The practitioners also showed large increases in their fidelity of VBI creation and implementation from pretest to posttest, although their VBI creation performance decreased slightly at follow-up. All participants reported positive experiences with the VBI and rated it as socially valid.