Laws and Customs
Torah laws according to Sefer Hakhinukh (all in Exodus 12 or 13):
Mitzvot (precepts) currently applying on Seder Night:
Reclining; dipping and eating karpas; washing hands; breaking the matza and hiding part for the afikoman; a fixed version for the narration; a special blessing for eating the matza; dipping the maror into the haroset and eating it, with a special blessing; egg with salt; eating the afikoman; singing songs and reciting poems of praise and thanks.
Each of the mitzvot of the Seder has two aspects:
(a) A reminder of the slavery;
(b) A reminder of the liberation.
Kiddush (as on every Sabbath and festival).
Drinking four cups of wine (Rabbinic law).
Eating maror (Rabbinic law).
Eating matza (Torah law).
Reading the story of the Exodus (Torah law).
The rabbis also established additional obligations, as follows (placed here in the order in which they are done):