Dioscorea alata, also known as purple yam, ube (/ ʊ b ɛ /), or greater yam, among many other names, is a species of yam (a tuber).The tubers are usually a vivid violet-purple to bright lavender in color (hence the common name), but some range in color from cream to plain white.
The earliest recorded use of ube in ice cream was in a recipe from 1922, when ice cream's introduction to Filipino culture during the American occupation (as the local adaptation sorbetes) led to new flavors such as mango, pinipig and melon. The recipe called for mashed ube, milk, sugar and crushed.