The new Rock'n lineup from Doritos features coal-black tortilla chips flavored with pepper and rock salt (¥127), on sale in convenience stores until Aug. 11 with the name Rock'n'Black.

The salt comes from the Andes mountain range in South America, but it's the pepper flavor that is overpowering and will leave your mouth dry. They go well with a bowl of homemade guacamole, however.

Keep an eye out for other flavors in the series such as Rock'n'Green jalapeno and cheese, a mixture of spicy and mild that will be on shelves from Aug. 11.