Pure gems, which is exactly what cupcakes, were once called (or was it small muffins were gems?). Cream cheese and chocolate chips anoint a fudge muffin and then the whole affair is gilded in a ganache, or truffle topping. Make these really small â€“they are rich and as divine as the finest French pastry. You can also omit the cream cheese topping and just use the truffle topping on these great chocolate cupcakes. Curls of white chocolate would make this irresistible.