On the back of a marshmallow creme jar is a fudge recipe that is easy, comes out great every time and you don't have to worry about it not setting or being grainy. It's a lot easier than the old fashioned kind, and my family likes it better.
By
01/31/2012
Not an expert but my thoughts are that you haven't let the sugar melt completely (thus the grainy feeling) And not cooking it long enough (not setting up). Sometimes it takes experimenting to get a recipe just right.