I knew it had been the 1st November, because I remembered to say White Rabbit (twice), but somehow I'd forgotten that the next time I would say White Rabbit (twice) it would be December; and December means cold roast Turkey, pickled onions, and pickled red cabbage.
I can't face Christm*s without pickled onions; it just wouldn't be right. There are certain things like sprouts, chestnuts, and roast spuds, that make the great day's feasting what it is, and pickled onions are amongst those essentials.
After 24 hrs in brine, they are bathed in sweetened, spiced, vinegar, then left to mature for a few weeks before broaching.
N.B. The pickled red cabbage is prepared about two weeks (or less) before the big day; any sooner and it begins to lose its crispness.