Reply To: K'zayis (or two) for Afikoman

Rav Schachter explained it recently. It’s a Machlokes Achronim. Either one Zecher L’Pesach and one Zecher L’chagigah or it’s one Zecher L’Pesach and one with which to be Yotzei the Mitzvah of Achilas Matzah.