According to family lore, this is the hot fudge sauce served at Brigham's Ice Cream shops in the Boston, MA area. I don't know if it is or not, but it sure tastes like it. It's delicious & very easy to make - great for Christmas gifts.
Everyone who tries this LOVES it. I'm addicted to it. My Dad was quite a character and a great intuitive cook who never used a recipe. Lucky for me this was easy to replicate (unlike his Sunday morning crepes).