Drip saturated NaOH solution(around 50% that is) onto MeNH2.HCl til no more amounts gas evolves and.When dripping always stir or agitate that MeNH2.HCl or whoosh.And watch out for suckback,add NaOH slowly,cub always gets few suckbacks(methanol gets sucked into apparatus but only tiny amount if you notice it immediatly).It's not rocket science.
EDIT:Forgot to add,methanol needs to be cooled constantly cuz dissolution is exothermic and don't use beaker to gas your methanol,use RBF or something with narrow neck so most of your gas won't fly away.In warm methanol and in open beaker,gas doesn't really want to dissolve and flies away...