Did Betty Crocker invent cake mix?

No, Betty Crocker did not invent cake mix.

While the Betty Crocker brand is synonymous with cake mix, the invention of cake mix is credited to General Mills in 1948. Betty Crocker was a fictional character created by General Mills in 1921 as a spokesperson for their products.

General Mills' cake mix was a huge success, and the Betty Crocker brand became closely associated with the product. However, Betty Crocker herself was not a real person and had no involvement in the actual creation of cake mix.