Spanish Milky Drink Made From Tiger Nuts
Puzzle 13 of The 1950s Hard Pack
Question is: Spanish Milky Drink Made From Tiger Nuts
and the answer is: HORCHATA
Word Meaning:
HORCHATA — A sweet beverage variously made with rice, chufa or morro seeds (or, historically, barley), water, sugar, and cinnamon, and sometimes with milk.
Definitions from Wiktionary.