___ Way, block in Lower Manhattan where a popular cookie originated

OREO

This creamy sandwich cookie's name starts with the same letters as a type of mineral.

This clue hints at a street name followed by "Way," referring to a block in Lower Manhattan. The answer is "OREO," as the famous cookie was created there by Nabisco. The blank before "Way" suggests a single word, and "Oreo" fits both the location and the cookie's name. The clue plays on the street name format while pointing to the cookie's origin.