Question: Sometimes we do hafrashat challah together as a group, with each woman taking a portion of the dough home to bake. Is this allowed?

Answer: At least one woman must take home a full shiur (required amount) of dough for hafrashat challah to be valid. If each woman only takes a small portion, then the hafrashah is not considered valid, and a blessing should not be recited. (Shulchan Aruch, Yoreh De’ah 326:2, Pitchei Teshuvah 326:1).