Smoothie King has announced a new and exclusive partnership with DoorDash to allow customers to order the brand’s 83 blends through DoorDash’s website or app for delivery or pick-up. The brand also announced a “Try Me Free” promotion that will give the new Smoothie King customers that order through DoorDash $0 delivery fees on orders of $15 or more. Additionally, the brand will also join DoorDash’s subscription service, DashPass. This service offers members unlimited, $0 delivery fees from participating....