Berry Blitzer is revivifying quite strong cocktail at 1.5 standard drinks. Shaken with 45ml rum spiced ableforths rumbullion and 30ml blackberry juice with 15ml lemon as well as 100ml ice and served before a meal to stimulate appetite. Just put ice cubes into bar shaker then drop in a little mint and add all other ingredients into shaker. Vigorously shake and fine strain into glass and dress top with sprig of mint and served in a saucer glass cold.