The Seder step where the Haggadah is read is Maggid.
Maggid is the fifth stage in the traditional 15-step order of the Passover Seder. Its name means “telling,” and it centers on fulfilling the commandment to recount the Israelites’ Exodus from Egypt. The Haggadah supplies the prayers, questions, biblical passages, commentary, songs, and stories used during this part of the evening.
Maggid begins with the Four Questions, traditionally asked by the youngest child capable of reciting them. It continues with passages such as Ha Lachma Anya and Avadim Hayinu, the discussion of the Four Sons, the Ten Plagues, and an explanation of the symbols on the Seder plate. The second cup of wine is also associated with this section.
Maggid is sometimes confused with the Haggadah itself. The Haggadah is the book or text; Maggid is the Seder section in which the story and meaning of Passover are told using that text.