JASP-EMT, the combined Enhanced Milieu Teaching (EMT) and Joint Attention, Structured Play, and Emotion Regulation (JASPER) interventions, has been found to be effective for promoting social communication in young children with autism (Kasari et al. in J Am Acad Child Adolesc Psychiatry 53(6):635-646, 2014). The current study examined the effects of this naturalistic intervention on social language use in three children with autism who were in the early stages of language acquisition. Generalization to communication partners who did not utilize the intervention strategies was systematically examined using a multiple-baseline design. The results from this study indicate that this blended intervention is effective in increasing target social language for young children with autism, however, generalization to communication partners does not readily occur. Implications for practice and future research are discussed.