Melt the lard, butter, or bacon drippings in a large heavy pot over medium heat. Add the onions and cook until they are translucent.
2.
Combine the beef with the garlic, ground chile, cumin, and oregano. Add this meat-and-spice mixture to the pot with the onions. Break up any lumps with a fork and cook, stirring occasionally about 1/2 hour, until the meat is evenly browned.
3.
Add the tomato sauce, water, salt, and optional parsley. Bring to a boil, then lower the heat and simmer, uncovered, for 1 hour.
4.
Stir in the corn flour(masa harina) to achieve the desired consistency.
5.
Cook 10 minutes longer, stirring. Taste and adjust seasonings.
