I used to work for macaroni grill and really there is no secret to the dessert ravioli - they use snicker crumbles with the most basic of ganache.

mix 2 parts snickers to one part ganache, wrap in flour pastry, lightly fry and top it off with your favorite caramel sauce and ice cream that is it, hope this helps...

another tip if you do not want to make ganache or do not know how, you can use any chocolate syrup. it may not taste exactly the same but you will get the effect.