I just purchased my first beer kit for the Cooper DIY kit. I have the standard Cooper Stout along with 2 pounds of Muntons dark dry malt extract. I am looking to make a thick, high alcohol stout for St. Patrick's Day festivities. Any tips or additions to this recipe to help aid in my celebration of the holiday and my first batch of beer? Some suggestions I have seen include adding some extra dextrose and brewing 18 L instead of 23L. Thanks for any and all input!