Pasilla chiles are one of the most complexly flavored mild to medium heat chiles. At their peak ripeness their elongated, heart shaped, curved and contorted pod is glossy, deep green and thick. The pepper contains a cotton textured membrane laden with small white seeds. When cut, the pepper's aromas reveal a preview of its flavors: spicy, earthy, rich and bright. Cooking the pepper brings out more flavor profiles, offering depth and undertones both smoky and savory. Aged and dried forms of pasillas become significantly hotter and develop more depth in flavor.