This is a fabulous Halloween creation that I fell in love with and had to keep safe (as in not losing the recipe!). It's from mattbites.com (http://mattbites.com/2011/10/05/adams-scary-apples/) and I unashamedly stole it word for word. You'll find some amazing photo's of these apples there too. All credit goes to Matt and Adam, and they deserve it in truckloads!
"*A Note About The Black Apples:* Lighter colored apples (Granny Smith, Golden Delicious) work well in making the red appear bright and glassy; darker apples like red delicious help the black candy appear as dark as possible. Muy spooky!
Also, Adam made one batch with red food coloring and after he had a few red apples he reheated the candy mixture and added black food coloring. Adding black to red will make it darker. He repeated the dipping process. Black food coloring can be found online or at specialty baking stores."
Do Not take the times I gave as gospel they are a complete guess. IMPORTANT:
You will also need "8-10 wooden twigs, twimmed"