Rachtzah
Wash your hands, pouring water three times on the right hand and then three times on the left hand, and say the berachah of Al Netilas Yadayim.
From this point until after korech, refrain from saying anything unrelated to eating the matzah and maror.
Motzi-Matzah
Hold all three matzos and say the berachah of Hamotzi. Next, let the bottom matzah slip from your hands and recite the berachah of Al Achilas Matzah while holding the top two matzos. Have in mind that this berachah also applies to the matzah that will be eaten for korech and the afikoman.
Take a kezayis from the middle matzah and another kezayis from the top matzah and eat them together (i.e., the first bite should include a bit of both kezeisim) while leaning to the left. Do not dip the matzah into salt.
The shiur of a kezayis of matzah (for motzi-matzah, which is min hatorah) is 1 oz. If there are eight matzos to a pound (and each matzah thus weighs 2 oz.), this equals half a matzah. (If there are more than eight matzos to a pound, add to this ratio; if there are less, subtract.)
Those who have their own kaarah take two kezeisim. The other participants at the Seder should be given at least one kezayis of matzah to eat.
Eat at least the size of a kezayis of matzah within a kedei achilas pras. The opinions regarding the length of a kedei achilas pras range from a minimum of four minutes to a maximum of seven minutes.
