Don't Forget "ERUV TAVSHILIN" (Rabbi Israel Yakobov)
“Baruch Atah Adonai, Eloheinu Melech ha’olam,
asher kid’shanu b’mitzvotav v’tzivanu al mitzvat eruv”
This allows a Jew to prepare food on Yom Tov for Shabbat.
It is done using matzah together with a cooked food (for example, an egg)
