After washing your hands, raise all three matzot and say
Baruch ata Adonai Elohinu melech ha'olam hamotzi lechem min ha'aretz.
We bless you, Lord our God, God of the world, who brings foth bread from the land.
Put down the bottom matzah and add:
Baruch ata Adonai Eloheinu melech ha'olam asher kidshanu b'mitzvotav v'ztivanu al achilat matzah.
We bless you, Lord our God, God of the world, who has sanctified us with his commandments and commanded us...