Whisky and Blackberry Lemonade
1 tsp aromatic bitters (Angostura brand)
24 frozen blackberries
1 cup ice cubes
185ml (3/4 cup) Scotch whisky
750ml (3 cups) chilled lemonade
Divide bitters among serving glasses and swirl to cover the bases and sides. Divide blackberries and ice among serving glasses. Pour over the whisky and lemonade and serve immediately.