Before the air has even cooled in many places and tree leaves have yet to fall, Starbucks’ Pumpkin Spice Latte (PSL) has once again returned to signal the unofficial start of autumn.
Since its debut more than 20 years ago, the PSL has become beloved by many fall enthusiasts worldwide. Starbucks reports that hundreds of millions of PSLs have been sold, making it the company’s most popular seasonal beverage.
