You likely skipped the flour step, or the chicken was too wet. The flour dries the surface of the chicken, giving the egg something to grip.
While the chicken rests, combine all sauce ingredients in a small saucepan. Simmer over low heat for 5 minutes until thickened slightly. The Cheesecake Factory sauce is distinctly sweeter than traditional Japanese tonkatsu sauce—this honey-brown sugar blend mimics their Americanized version perfectly. cheesecake factory chicken katsu recipe
