This invention provides smoking compositions which contain a monocarbonate ester compound as a flavorant additive. In one of its embodiments, this invention provides tobacco compositions which contain a monocarbonate ester flavorant additive such as 1-phenoxycarbonyloxy-3-propanol. ##STR1## Under cigarette smoking conditions the above illustrated monocarbonate ester pyrolyzes into phenol and other products which flavor the mainstream and sidestream smoke.