In some places like Oaxaca the chocolate is sold as an artisanal product. This means you walk into a molino (mill) where they grind the cocoa beans together with your favorite ingredients in the ratio you specify. The mix emerges still hot from the grinding and is a super sensory shock if you have never tasted hot ground cocoa.
Mail Order for Mexican Ingredients, http://splendidtable.publicradio.org/gourmetguide/source_mexican.html
A molinillo is a wooden beater with a round grooved end beneath several loose rings.
Recipe courtesy of Ricardo Muñoz and translated by Ruth Alegria
Andrea Reusing is the creator of the restaurant Lantern in Chapel Hill, N.C., and author of the book Cooking in the Moment: A Year of Seasonal Recipes. In this installment of The Key 3, she shares with Lynne Rossetto Kasper the techniques behind three of her favorite recipes: Turnip Soup, Overnight Braised Short Ribs and Tomato Salad.