Aunt Jemima – Wikipedia

Aunt Jemima is a brand of pancake mix, syrup, and other breakfast foods. The pancake mix was developed in 1888–1889 by the Pearl Milling Company and advertised as the first ready-mix. The Aunt Jemima character is based on the enslaved “Mammy” archetype. By 1915, it had become one of the most recognized brands in US history and changed US trademark law.

https://en.wikipedia.org/wiki/Aunt_Jemima