Prepare two highball glasses with ice and reserve

In the cup of a cocktail shaker, add the plum reduction, Cointreau, tequila, pomegranate cherry juice, and lime.

Next, add a generous handful of ice to your shaker and close the lid.

Shake vigorously for 30 seconds, or until the outside of the shaker becomes frosted.

Place a small fine mesh sieve over your serving glass and strain the drink into two glasses.

Top with soda water if desired. Garnish with a half round of plum or cocktail stirrer with blackberries.