GotGarlic
Chef Extraordinaire
I do remember making them back in the last house, so it would be pre-2000. I was getting all kinds of those sample "buy our recipe card sets" offers in the mail (I have enough sample cards for an entire box! ) and Hasselbacks were one of the recipes...
That's where I first came across them, too! And I still have them and use them. Just checked - ironically, they're from a company called Great American Recipes