We’re delving into the origins of ice cream – and learning about the surprising origins of the banana split: the retro dessert that always seems to be making a comeback. Food scientist Maria Depenweiller takes us through the history of ice cream, dating back to 618 A.D. Pay Chen interviews President’s Choice product developer Ben Holland about the process of inventing (or re-inventing) an ice cream flavour. And Melissa Di Fonzo, a clinical therapist with a specialization in food, explains why ice cream can trigger feelings of joy and nostalgia in all of us.