Edible gold leaf is one of the most showstopping dessert decorations you can use! Real gold gives a glitzy touch to any cake or pastry. These sheets are delicate--and expensive!--so I tend to save them for special occasions. But when the time is right, they bring a ton of drama and impact to the dessert table!
There are two types of gold leaf sheets - loose leaf and transfer leaf. I've linked the transfer leaf variety, because I think it's easier to work with, and it's also preferred if you're going to be covering a cake with gold leaf. But if you want the leaf for other things, like adding just a crinkled dab to the top of a chocolate tart, you might want to search out the loose leaf variety instead.