Ingredients

1/4 cup vegetable oil
2 tablespoons flour
3 tablespoons New Mexico chili powder
2 teaspoons ground cumin
8 ounce tomato sauce
1 1/2 cups water
1 teaspoon Kosher salt (or 1/2 teaspoon table salt)
1 Tablespoon dried onion flakes
1 teaspoon dried garlic flakes
pinch dried Mexican Oregano

Instructions

1. Heat oil in medium saucepan.  Whisk in flour and cook for one minute over medium heat.  Add chili and cumin, heat for 15 seconds or so.

2. Add tomato sauce and water, whisking until well blended.

3. Add salt, onion flakes, garlic flakes and oregano.  Bring to simmer and cook for 10 minutes stirring frequently.

https://www.youtube.com/watch?v=7q5wHLCMKYQ