Pirurutong / Parirutong
Featured photo taken by Rica R. in Lucban, Quezon.
Pirurutong is purple glutinous rice… usually prepared by first grinding into a flour (galapong), then frying as maruya or pancakes.
Street food in Pagbilao in Quezon province.
Spelling variations: perorutong, parirutong
In the United States, the Filipino American company Tropics sells what looks like black rice grains as pirurutong. See photo here.