If you want to give the Irish Soda Bread a nice crunch on the outside, pre-heat the oven with an empty cake pan on the lower rack. Let it heat at temperature for 20 minutes. When the dough is ready, put the cookie sheet with the dough on the top rack and pour a cup of water into the cake pan. Quickly close the door. Steam will form and will give the bread a nice crunch on the outside while keeping the inside soft.