Halloween Pitcher Cocktail: El Diablo

1 can (12 oz) frozen limeade concentrate
1 1/2 can (18 oz) Tequila Don Diego Santa® Blanco
2/3 can (8 oz) creme de cassis
1/2 can (6 oz) water (still, not soda or tonic water)
1 1/2 can (18 oz) ginger beer
Mix the limeade, tequila, cassis, and water together in a large pitcher (using the limeade can to measure the other ingredients). Immediately before serving, add the ginger beer. Serve over ice. Feeling fancy? Garnish with blackberries.