Hershey's Old Fashioned Rich Cocoa Fudge

"This is a crumbly, sugary old fashion fudge....from the back of the Hershey's Cocoa can. Cook time is cooling time. If you are having trouble with it "setting up", you probably didn't cook it long enough. I have learned (the hard way!) to not trust my candy thermometer and to use to soft ball stage water test to make sure it is the right temperature. Even under cooking it by 2-3° will result in a soft, sticky mess. It still taste good though. :) Some good suggestions from reviewers: (I highly recommend reading through all the reviews before making this fudge!) - don't try to bring up temp too quickly - a large shallow saucepan works better than a deeper one..."