The Epicurious cake is the only chocolate cake I use! It's amazing, dense and fudgy! So good! I've not tried it as cupcakes but I have made it many, many times in cake form! Let us know if you use it how it turns out! :)
Doramoreno62- it does cut the sweetness, I use popcorn salt because it is a smaller grain than regular salt, and I add a little pinch at a time until I get the desired "less sweet" taste! Hope that helps
You can absolutely make the cake tomorrow! It will be fine, just cover it (box) overnight!I can't help with the fondant question though! Have you tried Google to look for tutorials? Good luck!