ROCKFORD — When Zina Horton took over Zammuto’s 18 years ago, her first attempts at making its beloved granita didn’t quite hit the sweet spot.
“Anybody that would pull up in the parking lot that knew Zammuto’s and what they would serve, we would say, Is this it? Is this it?” Horton said. “And it was always no.”
That changed after Joe Zammuto pulled up to the south side staple at 725 Kent St. in a black Cadillac…