"Challah [...] Hebrew: חַלָּה [...] is a special bread
of Ashkenazi Jewish origin, usually braided and typically eaten on
ceremonial occasions such as Shabbat and major Jewish holidays (other
than Passover). Ritually-acceptable challah is made of dough from which
a small portion has been set aside as an offering. Challah may also
refer to the dough offering, and any bread that is made for Shabbat, or
from which an offering is taken." - Wikipedia.com
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