First, prepare the sauce by blending all the ingredients except the oil. Meanwhile, heat oil in a pot over medium heat. Pour in the blended sauce and fry it, stirring constantly. Let it cook down until thickened, then turn off the heat and let it rest. Set aside.

Filling: Mix all the filling ingredients in a pot and let rest.

Assembling the Enchiladas: Take a fried tortilla and spread sauce on both sides with a spoon. On the thinner or blistered side, add filling and roll up. Repeat with all tortillas. Arrange them in a greased baking dish, leaving space so they heat evenly. Place the dish in a moderate oven to heat through, then serve. When serving, heat more sauce and pour it over the enchiladas.

If you prefer them cold, simply roll them up, arrange on a plate, and pour sauce over before serving.