Add oil to a pot and heat on medium heat. Pour in flour and create a roux by whisking together for 1-2 minutes.

Add chili powder, garlic powder, salt cumin and oregano and mix until clumpy.

Pour in chicken broth, whisking the entire time and until there are no more clumps. Heat for about 15 minutes or until sauce is thickened.

TIP: You know the sauce is thick enough when it coats the back of a wooden spoon well.