At Ask Me Help Desk you can ask questions in any topic and have them
answered for free by our experts. To ask questions or participate in
answering them you must register for a free account. By registering you
will be able to:
Get free answers from experts in any of our 300+
topics.
Depending on the chocolate you're using I'm guessing it's the fat seperating from all the other ingredients and coming to the top, nothing to worry about though!
Its just the fats seperating if you use a high coca mass chocolate and don't over work it this shouldnt happen but once the chocolate has been melted for some time and re worked it does tend to seperate.