Finally learned how to make roses!
This is a chocolate cake with chocolate icing. There's a filling made with "mazapanes", a sweet found here in Mexico: I crumbled these little mazapán cakes, mixed them with egg whites and got something like almond paste, but made of ground peanuts. Mmmmm. I learned the roses from tonedna's six-part rose tutorial on YouTube - thank you Edna, I don't know what I would have done without you!