In Chinese, it's called zuo yuezi, or "sitting the month." Vietnamese refer to it as nằm ổ, literally "lying in a nest." The recipes for these foods are unlikely to be found in any cookbook. These postpartum tonics have traditionally been prepared by grandmothers and aunts; the ingredients and techniques passed down orally.
By sfllaw from Restaurant Lotte Furama [http://www.google.ca/local?f=l&hl=en&q=lotte+furama&near=Montreal,+QC&ll=45.508497,-73.564432&spn=0.013383,0.014977 in Montréal, Québec] (Flickr) [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons