El Diablo

El Diablo
Ingredients: 
1 oz Reposado Tequila
1/2 oz Crème de Cassis
1/2 Lime
Ginger Ale
Preparation: 

Squeeze lime juice into a 10 ounce glass and drop in the shell.  Add ice, tequila and Crème de Cassis.  Fill remainder of the glass with ginger ale.