How to do it…

1. The hilariousness of this is that the instructions are simple. No faffing about. Just mix ingredients together and bake at 350°F in a greased and floured 8" square pan. That's it!
2. Now, if you don't know how to test a cake for done-ness, you can either get a cake tester which has a tip that changes color when inserted into the center of the cake and it tells you when it's done. Or, less fancy, you can use a toothpick to insert in the center of the cake, and when it comes out clean (no liquidy-dough on the end), it's done. Depending on ovens, you may want to start testing this at around 20-25 minutes, but it'll probably take longer.
3. As for the icing: Cream sugar and butter, add egg, and salt. Add melted chocolate and vanilla then ice the yummy cake! And I would recommend icing the cake when it's still a bit warm. I'll just say here it may seem weird that there's an egg in this and there's no cooking, however, the better you beat this and with the chemical components of the other stuff, as far as I know, it's safe.