PAS HABA B'KISNON(CAKES ETC.)
SEIF 1 (Cont.)
The Tosfos Shabbos says that a person can be Yoitze eating the Shabbos Seuda using Pas Haba B'Kisnon (cakes etc.). This is because a meal was established by using these cakes. When Pas Haba B'Kisnon is used to establish a meal, it has the status of bread requiring washing, Hamoitzie and Birchas Hamazon. Therefore one is Yoitze Seudas Shabbos using Pas Haba B'Kisnon just like with bread.
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