Tu BiShvat, called the "New Year of the Trees," falls at a seemingly incongruous time of year.
Tu BiShvat is a minor festival whose provenance dates only to the time of the Second Temple. However, the kabbalists who clustered around the great fifteenth-century mystic Isaac Luria of Safed placed great weight on the holiday, creating new festivities, gatherings at which hymns were sung, fruit (particularly carob) was eaten, and four cups of wine were taken (as in the Passover seder).
Derived from central Europe, the popular kichlach (Yiddish for "cookies") are to be found in many of the packages prepared by parents for their children serving in the Israeli military.
The use of sherry vinegar, cumin, and oranges speaks volumes about the Iberian influence on the cooking of South America.