The Frito-Lay Corporation is making a strong play for the lucrative African-American market with 'Doritos Dark and Smooths,' a new menthol-flavored snack chip product. The tortilla chips will be liquefied and sold in 40-ounce containers. 'New Menthol Doritos... works every time,' pitchman Billy Dee Williams said in his trademark sexy voice at a press conference Monday. Frito-Lay will be test-marketing the product on Chicago's South Side this month with the slogan, 'New Doritos Dark and Smooths... So Dark... So Smooth.' 