Wikipedia Article About Mulato chile on Wikipedia The Mulato is a mild to medium dried Poblano pepper, sold dried. Mexican Mulato chiles are part of the famous mole "trilogy" used in mole sauce as well as other Mexican sauces and stews. The Mulato's color while growing is dark green, maturing to red or brown. The dried Mulato is flat and wrinkled, and always brownish-black in color. The average length of the Mulato is ten centimeters, and it is typically five centimeters wide. Its shape is wide at the top, tapering to a blunt point.