i followed this recipe from allrecipes.com
i didn't change anything as it was the first time making it, but i also didn't make the sugar topping or use the lemon zest. i just made a simple powdered sugar icing with cocoa powder to make it chocolate. I found this to be a little sweet, so the next time i might just make a dark chocolate ganache to drizzle over the cake (and in between the layers of course!)
It was still delicious, and the thinner you sliced the cake, the better it tasted.
here are some pictures of the process, i didn't take one of every step but there are enough to get the general idea.
i need to work on making my layers and icing more even, but it doesn't mean it wasn't delicious!
enjoy, it is time consuming, but worth the effort for special occasions.