Oreo Gets Sour Two snack giants are teaming up for a sweetly sour treat. Oreo is releasing a new sweet and sour collaboration: Oreo Sour Patch Kids cookies. The company said, “Sour. Sweet. OREO. Fans can now experience all three!” The cookie is actually Sour Patch Kids-flavored with multi-colored flecks baked in. The creme inside is also filled with even sour sugar bits.  The product will hit shelves nationwide on May 6. What Oreo flavor have you tried that did NOT work?