I have no idea what silly explanation there is as to why it was decided these were good for inducing labor, but do you really need an excuse to eat chocolate cake? P.S. it doesn't work.
Decide what shape cake you want and prepare the oven temperature and pan according to the box's directions. I've chosen to make cupcakes here so I can freeze half of them.
Prepare cake batter according to box.
Add the pudding mix, sour cream and chocolate chips.
Stir until thoroughly mixed.
I'm making cupcakes so I'm using an ice cream scoop to portion.
Get your cake in the oven. These will take a few minutes more than the box says to bake because of the extra fat/moisture. Keep checking until a toothpick comes out clean.
Mmmm... If you make cupcakes, they will fall a bit when removed from the oven.
Let them cool in the pan for a few minutes then cool them on a rack. When they are totally cooled, start the frosting.
Either pull out your double boiler or fudge it by putting a heat safe bowl over a saucepan of simmering water.
Put your heavy cream, spices, and corn syrup in the bowl. If you don't have corn syrup, don't run out for some. It makes the ganache shiny and smoother but isn't necessary.
When cream simmers, pull it from the heat and let it cool for a minute. Then dump in the chocolate and vanilla and let stand for a minute or two to let the chocolate start to melt.
Then, start stirring. The ganache should be totally smooth. If necessary, put it back over the simmering water if it cools before the it's totally smooth.
If you prefer fluffy frosting, you can wait until the ganache is cool and the whip it in the mixer.
The easiest way to ice these cupcakes is to dip them straight in. Twirl, the let any excess drip.
They will be pretty and shiny if you added the corn syrup.
Try not to eat all of the (cup)cake(s) by yourself.