(TrendHunter.com) The Sonic Banana Pudding Shake is a special edition offering from the brand that will provide patrons with a dessert-inspired option to enjoy on its own or after a meal. The milkshake starts off... (TrendHunter.com) The Sonic Banana Pudding Shake is a special edition offering from the brand that will provide patrons with a dessert-inspired option to enjoy on its own or after a meal. The milkshake starts off...