Irish Créme Oreo Thins taste like they’re mad at me. It’s like a mixture of angry nougat and coffee that’s mixed with sour milk. I’ve been reviewing Oreos on and off for the past 11 years.

The original Oreo cookie is growing up and thinning out in its latest product, Oreo Thins, a version of the cookie the brand is marketing as sophisticated and it is leveraging mobile and social media ...