Flavor Jungle Blue Raspberry Reloaded. This is not the original raspberry from FJ, so you probably don't have it. You can use the Blue Raspberry and probably get a similar result. This should taste pretty close to a disposable, meaning real sweet. I love this one! Hard Candy and Polar blast are the ticket to making this real good.

https://flavorjungle.com/products/blue-raspberry-reloaded-one-shots?variant=40476463857722