The name was misleading. It shouldn't be named Chocolate Truffle but Chocolate Caramel Cake instead.
The supposedly truffle in between the chocolate cake, have a darker caramel taste than chocolate.
Somewhere there I was reminded of Polly's chocolate cake. Must be the condensed milk + chocolate taste that I was getting from it. But compared with Polly's, Mary Grace Chocolate Truffle will make you feel guilty after. I can finish an entire 8x12 Polly's cake in one sitting, but I can only finish a slice of Mary Grace Chocolate Truffle. Maybe because it was way sweeter too.
In spite of all that, it is now my favorite order at Cafe Mary Grace. I buy a slice or two every other day, and whenever they ran out of it, I feel sad. That must mean something, right?