The Haggadah is the book of stories, prayers and rituals that is read at the Passover Seder. Each seder has 15 steps. Even if you're doing a short seder, you can cover the basics with the following:
Introduction: Review with participants the order of the Seder by listing all of the sections. Take this opportunity to welcome all guests to the Seder and focus everyone’s attention on the theme of the evening, which is traditionally ‘freedom.’ It’s also a good time to thank those who helped to prepare the meal or do some icebreakers!
Kadesh: [Blessing] Drink the first cup of wine while reclining in a comfortable position.
Urchatz: Hand washing (without blessing); it is customary to do this before dipping food.
Karpas: [Blessing] Greens dipped in salt water; the greens symbolize Spring and the salt water reminds us of the tears of our ancestors who endured slavery.
Yachatz: There are three ritual matzot on the table. Break the middle matzah and one half becomes the afikomen (which is then hidden to be found later in the seder).
Maggid: This section includes the main part of the seder and is comprised of the following sections.
-- Four Questions; or Ma Nishtana, traditionally recited by the youngest child at the table
-- Four Children; commentary on the four types of approaches to the questions
-- Telling of the Exodus story including our ancestors slavery in Egypt
-- Ten Plagues; a highlighted part of the Exodus story
-- Drink the second cup of wine and sing Dayeinu
Rachtzah: [Blessing] Hand washing before the meal, this time with the traditional blessing.
Motzi-Matzah: [Blessing] Matzah is shared and eaten (traditionally this is taken from the top and remaining half of the middle of the ritual matzot).
Maror: [Blessing] Horseradish (bitter herb) is eaten.
Korech: “Hillel Sandwich” is eaten; a bite made with matzah, maror, and charoset.
Shulchan Orech: Haggadaot are put aside while eating the festive meal!
Tzafun: The hidden afikomen (from ritual matzah at begging of seder) must be found (or ransomed), then shared and eaten; this is traditionally the last thing eaten for the remainder of the night.
Barech: Birkat Hamazon, grace after meals, is recited and includes the third cup of wine.
Nirtzah: This concludes the Seder with songs and wishes for next year (in Jerusalem!).