Background: Few studies have examined the acceptability and usefulness of enhanced cognitive behavioural therapy (CBT-E) for adolescents with eating disorders (EDs). Aim: To investigate whether CBT-E was an acceptable and efficacious treatment for an adolescent presenting to a routine clinical service with an ED. Method: Daily self-monitoring records were completed during a baseline (A) and intervention (B) phase in addition to routine outcome measures. Results: There were reductions in both ED behaviours and ‘feeling fat’, and increases in weight after 11 CBT-E sessions. Progress was only partially maintained at 8-month follow-up. Conclusion: CBT-E may be an acceptable and useful intervention for adolescents with EDs.