The phrase "authentic taste" is correct and usable in written English.
You can use it to describe something that has a flavor that is true to its original form. For example, "This Italian restaurant offers an authentic taste of true Neapolitan pizza."
Just pure, authentic taste.
To achieve a truly authentic taste, try to find imported chorizo and Bomba rice.
That said, there are still places that offer an authentic taste of Mexico.
Often overrun during the summer, Tuscany can still deliver authentic taste off the tourist paths.
And for a critic on the prowl for an authentic taste of the city in full springtime bloom, surprises abounded.
Worst of all is the car-thief dialogue that's supposed to give us an authentic taste of this underworld.
"I have to eat out in masses of restaurants so I understand excellent quality and authentic tastes, as well as British versions of authentic tastes.
Flavours include white chocolate chilli with its subtly fiery streak, salt caramel given a sparkle by its namesake and the gorgeously authentic tasting passion fruit.
Satongun champions ancient recipes and quality ingredients, adding modern twists and sourcing authentic tastes from underrated places such as Nan province in the north.
"You can now get fantastic specialty malts, British and international hops, and even different types of yeast all helping amateur brewers to create very authentic tasting beers".
So, from the Finger section, deep-fried squid, cut into chewy strips so large they needed their own wrangler, and some authentic tasting tuna sushi, made with dangerously collapsible rice which dropped into the soy sauce with a splash.
