  We consider a model of baryogenesis based on adding lepton number-violating
quadratic mass terms to the inflaton potential of a non-minimally coupled
inflation model. The $L$-violating mass terms generate a lepton asymmetry in a
complex inflaton field via the mass term Affleck-Dine mechanism, which is
transferred to the Standard Model (SM) sector when the inflaton decays to
right-handed (RH) neutrinos. The model is minimal in that it requires only the
SM sector, RH neutrinos, and a non-minimally coupled inflaton sector. We find
that baryon isocurvature fluctuations can be observable in metric inflation but
are negligible in Palatini inflation. The model is compatible with reheating
temperatures that may be detectable in the observable primordial gravitational
waves predicted by metric inflation.
