Easy-drinking, easy-to-make tequila cocktails arent as plentiful as wed like, so we were pretty pleased to find this classic recipe from trader vics book of food and drink, reprinted in the smugglers cove book. The original recipe calls for the drink to be built in a glass, with the crme de cassis drizzled in at the end, sinking to the bottom. We tried that way as well as shaken, and we preferred the shaken version the blackcurrant flavor is much better mixed into the drink than sitting at the bottom of it.