We do the Koreich step so we can fulfill our obligation of Matzah and Maror according to all sides of an argument regarding the performance of the commandments of eating matzah and maror at the time when we had the Holy Temple.

Take the bitter herb and place it in between two pieces of matzah (One piece from the top matzah and one piece from the bottom matzah)

Some people dip the bitter herb in the charoset.

At this time we say the words: “This is what Hillel did, at the time that the Temple stood. He wrapped up some Pesach lamb, some matzah and some bitter herbs and ate them together.”

Alex: My family eats the matzah with the charoset as a sandwich. I don’t think it’s that good so I only have a small bite.

Hannah: I think the sandwhich has a spicy and bitter taste and should be consumed in small quantities.

Discussion Question:
Did you know that Moses isn't mentioned in the haggadah. In your opinion, why do you think Moses isn't mentioned in the haggadah?

haggadah Section: Koreich
Source: http://www.chabad.org/library/howto/wizard_cdo/aid/117121/jewish/10-Wrap.htm