Why can't one cook for the second day of Yom Tov on the first day? Why won't something along the lines of Eiruv Tavshilin help in this case as well?

1 Answer 1


The format of a 2-day Yom Tov is a s'feika d'yoma. If Thursday is the Yom Tov, I cannot cook for Friday which is Chol (Rosh Hashana isn't exactly because of the same reason, but the same answer would apply).

  • I don't see how this answers the question, as you're allowed to cook for the same day.
    – SAH
    Dec 15, 2015 at 20:34
  • 1
    @SAH That same day is either Yom Tov or not. Either way you can cook for it.
    – Double AA
    Apr 27, 2016 at 6:08

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