Sarsaparilla (pronounced SASS-per-ill-ah)
"She sat alone in the black attic, smelling the one smell that did not seem to fade. It lingered like a sigh of satisfaction, on the air.
She took a deep, long breath. The old, the familiar, the unforgettable scent of drugstore sarsaparilla."
-- final lines of "A Scent of Sarsaparilla" - short story by Ray Bradbury, 1953.