Good news and bad...
Starbucks cannot guarantee any of their flavors/syrups are gluten-free due to the potential for cross contamination. In my opinion, it is irresponsible for a company that huge to ignore this health concern that effects so many of their customers. Bye bye Starbucks yumminess...
Good news! Monin syrups and flavors are ALL gluten-free! I always loved them. That includes pumpkin spice. I emailed Peet's and will hear back soon if their flavors/syrups are GF or not.