William Sandys, Christmastide: Its History, Festivities…
“ Many great houses had, and no doubt still have, wassail bowls of massive silver. Wassail, in Ben Jonson’s mask of Christmas, is described as a neat sempster and songster; her page bearing a brown bowl, dressed with ribbons and rosemary, before her.The practice of introducing the bowl is still retained in Christmas meetings, though the component parts are generally ale, sugar, nutmeg, and a toast, omitting the roasted apples, which are necessary to constitute genuine lamb’s wool; “lay a crab in the fire to roast for lamb’s wool;” ”
