An eruv tavshilin (Hebrew: עירוב תבשילין, "mixing of [cooked] dishes") refers to a Jewish ritual in which one prepares a cooked food prior to a Jewish holiday that will be followed by the Shabbat. Normally, cooking is allowed on major Jewish holidays (unlike Shabbat and Yom Kippur, when these activities are forbidden), but only for consumption on that day, and not for consumption after the holiday. If such a holiday occurs on Friday, cooking for Shabbat is allowed according to Biblical law, but the rabbis forbade this in order to prevent confusion on other years (when the holiday does not immediately precede the Sabbath) unless this ritual of eruv tavshilin is performed, which would remind the people of the reasons for the exception, or it is a facilitation continuing from prior preparatio