The phrase "real blueberries" means actual, genuine or authentic blueberries. It is a way to describe something that is not fake, imitation or artificial but rather the real deal.
Sentences with «real blueberries»
Serve with REAL blueberry syrup — surprisingly made only with blueberries! (vegkitchen.com)
I'd think using real blueberries instead of the concentrate would be less sugary, not more — right? (testkitchentuesday.com)
Make these no bake bars using real blueberries, raspberries and your favorite oil. (petiteallergytreats.com)