And on the first day a yom tov and on the seventh day a yom tov you shall have, no work shall be done on them, only what each person is to eat, that alone will be prepared for you. (Exodus 12:16) This verse teaches that one is allowed to cook on yom tov but the food must be consumed on that day.

When yom tov falls out on Friday, as it does this week, one cannot prepare food for the next day, which is Shabbat.  To circumvent the problem, we perform something called an eruv tavshilin. This permits us to prepare food on yom tov that will be eaten on Shabbat. The process is straightforward. Before candle lighting tonight, take a cooked food (egg, fish, meat) and a piece of matza and make the following blessing and declaration in Hebrew or English: