[Avodah] taking off challah from cake dough

[M Cohen]

certainly one has to take challah even from a liquid dough (ie cake batter)
w/ a brocha

however, in most home cooking scenarios it is not applicable, as most pple's
mixers don't make the amt of dough that  would req hafrashos challah (and
the tziruf that pple do with bread dough is usually not done with cake
batter)

see http://www.star-k.org/kashrus/kk-issues-challah.htm

Mordechai Cohen