The unofficial national drink of Mexico, where it's made, and hailing back to the Aztecs, pulque is a thick, milky-white, mildly alcoholic beverage fermented (see fermentation) from the juice of various species of agave. To make it more palatable, pulque is often flavored with any of various ingredients including chiles, fruits, herbs, nuts, spices and sugar. See also mezcal; tequila.
From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.