Inclusion Criteria:  All patients diagnosed with EoE age ≤ 17.5 years at inclusion who were confirmed to have cow's milk as a trigger by demonstrating improvement during elimination and histologic relapse following reintroduction. Verified histologic remission on milk-free diet on endoscopy prior to intervention Proton-pump inhibitors may be used if treatment is maintained at the same dose from the screening endoscopy throughout the trial period, and was used at the time that milk was demonstrated to be the triggering food. Ability to consent to enrollment in the trial - legal guardians with joint consent for patients >10 years.  Exclusion Criteria:  Patients with clinical IgE-mediated milk allergy. Provisional exclusion: patients without a known IgE-mediated allergic reaction to milk who have a positive RAST (as per local reference range) or positive skin-prick test for cow milk or goat milk must be assessed by a certified allergist/immunologist and cleared for the trial by a supervised goat milk challenge. Use of inhaled corticosteroids for more than 5 days per month during the trial period.