STEP-1
Add oil to a pot and heat on medium heat. Pour in flour and create a roux by whisking them together for 1-2 minutes.
STEP-2
Add chili powder, garlic powder, salt, cumin, and oregano and mix until clumpy.
STEP-3
Pour in chicken broth, whisking the entire time until there are no more clumps.
STEP-4
Heat for about 15 minutes or until the sauce is thickened.
STEP-5
TIP: The sauce is thick enough when it coats the back of a wooden spoon well. In the picture above, on the left, the sauce looks watery and doesn't stick to the spoon.
STEP-6
The picture on the right shows that the sauce is thick and sticks to the back of the wooden spoon showing that it's ready.