Roast the chiles and cut the tortillas in thin strips.
Mix the tomatoes, onions, garlic and chiles in a blender.
Add the blender content in a pot with water and chicken stock. Let them boil.
Place tortilla strips in a bowl and serve the soup in the bowl.
For the final touch put some avocado, chicharrĂ³n y Queso Cotija El Abuelito.