Chocolate Witch Cupcakes

This witch here is looking forward to Halloween, every single year, and this year she's planning a mega surprise for all those tiny trick or treaters that will visit her: she'll be spoiling them with some delicious, Halloween special chocolate witch cupcakes! Lend her a helping hand with the baking and start mixing some creamy butter with a couple of spoonfuls of cane sugar, brake an egg, too, pour some vanilla, as well, then...