Whisk in the flour to make a roux. Cook until the mix is completely smooth and starts to bubble.
1 tablespoon all-purpose flour
Whisk in chili powder, onion powder, garlic powder, oregano, cumin and ancho chili powder. Cook until fragrant (about 30 seconds).
1 tablespoon chili powder*, 1 teaspoon onion powder, 1 teaspoon garlic powder, ½ teaspoon dried oregano**, ½ teaspoon ground cumin, 1 teaspoon ancho chili powder
Stir in chicken broth and tomato sauce. Cook, whisking continuously, until starting to thicken (1 to 3 minutes).
¾ cup chicken broth, ½ cup canned tomato sauce
Take off the heat, then stir in cream, followed by lime juice.
3 tablespoons heavy cream, ½ teaspoon lime juice
If not using immediately, store the sauce in an airtight container in the fridge. Consume within 3 days.
Recipe notes:
*You can use mild, medium or hot chili powder, depending on how spicy you would like the sauce to be.**I prefer Mexican oregano but you can use any variety of oregano you have available.