Halachah in the Parshaha- Chayei Sarah- Baking Fresh Challah on Erev Shabbos

One clarification: A single dough containing the required shiur needs hafrashas challah with a brachah, even if divided to make challah and cinnamon buns.

However, two different doughs—such as cookie dough and challah dough—each below the shiur do not require hafrashah, even if their combined amount reaches the shiur.