Put meat into large, cast-iron pot.
Add corn oil to meat and sear over high heat, stirring constantly untl meat turms light gray.
Add hot water to just cover meat.
Add remaining ingredients EXCEPT masa flour, and simmer 2 1/2 hours.
Dip off all grease.
If chili is too thin, sprinkle with masa flour and stir for 15 more minutes.
Chil-Lovers'Cookbook P25