Cut off the stem and remove seeds and veins, then place the chiles in a stockpot. Cover with water and bring to a boil.
Add all the rehydrated chiles and sauce ingredients into a blender, then add water and blend until smooth.
Heat oil in a pot and carefully place the strainer over it. Strain the sauce. Discard any bits that remain in the strainer.
Fry the tortillas for 1-2 minutes on each side and place them on paper towels to drain any excess oil.
Dip the fried tortilla into the sauce and add the cheese to the center of the tortilla.
Fold the tortilla and serve immediately. See that? Simply delicious and simply irresistible.