Molinillo

This tool was actually invented by the Spaniard colonists in Mexico around the 1700's.  Prior to the invention of the molinillo, chocolate was frothed by pouring it from one cup to another.  The molinillo was then rotated between the users two hands placed palm-sides together.  The twisting motion frothes the chocolate. Foam is important as Mexicans believe the spirit of the drink is in the foam.