Starbucks' iconic pumpkin spice latte — colloquially referred to as PSL — was first introduced in 2003, according to the company, and has since become a fall staple for many coffee drinkers.

The pumpkin spice latte – also known as the PSL – became a fall obsession as soon as it hit Starbucks in 2003. In just a decade, Starbucks reportedly sold more than 200 million cups of the ...

However, in 2015 — a dozen years after its introduction — Starbucks revamped its PSL sauce by adding a small amount of pumpkin puree. Additionally, the coffee purveyor lists pumpkin puree as ...