I have tried many different enchilada sauces over the years in search of the perfect red enchilada sauce. This recipe comes from Douglas Cullen from the Mexican Foodie. It is the best enchilada sauce I have ever made. The main ingredients which give the sauce most of its flavor are ancho chiles and chiles de arbol. The chiles de arbol are what give this enchilada sauce its heat. Reduce their number if you want to prepare a milder sauce. Increase for more heat. This sauce is delicious!