1. In a medium saucepan, whisk together sugar, Hershey’s Syrup, cornstarch, and salt until thick and smooth. Slowly whisk in real milk and vanilla extract.
2. Place pot on low heat and whisk continuously until mixture thickens, about 3–4 minutes. Pour into a heatproof bowl. Press a piece of plastic wrap against the surface of the pudding and chill completely.
3. Place a dollop of pudding in a small parfait glass. Press banana slices and vanilla wafers up against the sides of the glass. Layer more bananas, wafers, and pudding into the center of the cups to fill them up. Top with a large dollop of whipped cream. Garnish with crumbled vanilla wafers and a few more banana slices.