No single person is universally acknowledged as the inventor of cookies and cream ice cream, but the strongest and most widely cited claim comes from South Dakota State University in 1979.

Main claim: South Dakota State University

Most modern histories credit South Dakota State University’s dairy plant with creating the first true “cookies and cream” flavor in 1979. The story centers on dairy plant manager Shirley Seas, who asked students Joe Leedom and Joe Van Treek to crush Oreo cookies into vanilla ice cream, originally calling it “Oreo ice cream” before changing the name to avoid trademark issues.

Other people who claim it

Several others also claim to have invented cookies and cream ice cream, which is why the origin remains debated. Commonly mentioned names include ice cream consultant Malcolm Stogo (who says he created it in the late 1970s), flavor developer John Harrison at Edy’s/Dreyer’s (credited by the company with inventing it in 1982), and Blue Bell Creameries, which was among the first to mass‑produce and market the flavor around 1980.

Why there’s no definitive answer

Because no one secured a clear, enforceable patent or uncontested documentation at the time, multiple shops and companies were experimenting with mixing chocolate sandwich cookies into vanilla ice cream in roughly the same era. Food historians and journalists generally treat the SDSU story as the most convincing documented origin, but still note that the true “first” batch can’t be proven beyond doubt.

Quick Scoop (for your post framing)

  • The most credible answer to “who invented cookies and cream ice cream” is: South Dakota State University’s dairy plant, led by manager Shirley Seas with students Joe Leedom and Joe Van Treek in 1979.
  • Alternative claimants include Malcolm Stogo, John Harrison (Edy’s/Dreyer’s), and Blue Bell Creameries, all tied to late‑1970s/early‑1980s experiments with the flavor.
  • Modern write‑ups and forum‑style discussions often frame it as a fun “great debate,” but when pressed for evidence, they usually lean toward SDSU as having the best documented claim.

Information gathered from public forums or data available on the internet and portrayed here.