El Diablo Cocktail

One of the most iconic (yet often under-the-radar) cocktails in the tequila canon features crème de cassis, lime and ginger beer.
1 1/2 oz. reposado tequila
1/2 oz. crème de cassis
1/2 oz. fresh lime juice
2–3 oz. ginger beer
Tools: shaker, strainer, fine strainer
Glass: highball
Garnish: lime wedge and fresh blackberry (optional)

Combine all ingredients, except ginger beer, and shake. Fine-strain into an ice-filled Collins glass, top with ginger beer and garnish.

Adapted from the classic by Drink.Well, Austin, Texas