Don´t know what skiiers drink.... but maybe you experienced some kind of
Glühwein. The Webtender´s recipe is a good one:
http://www.webtender.com/db/drink/1193. You can substitute the lemon peel with
orange peel or add it. Glühwein is also sometimes given a "shot" on request,
and though it´s usally some kind of schnaps, Grand Marnier sounds pretty good
to me.
--
Tom