I'll let you browse the recipe from Inn Cuisine as I have not gotten permission to duplicate it here.
I made the recipe as stated and got the 12 muffins, I seemed to have almost half the cheesecake filling left over when I had finished. I should have used more of the cheesecake filling as it melts and leaves hollows if you don't use enough (see photo below). I made a second batch of six muffins using up the leftover filling by making them in large muffin tins and they were much better. I still think there is too much filling for a single batch of batter.
Sandie's description of the finished product is spot on: "Surprisingly well-balanced, these muffins are a chocolate lover’s delight and stop short of being cloyingly sweet".
The only thing I might change in the future is springing for quality cocoa, the store brand that I used didn't give the same striking contrast in colour that Sandie's had.