2 lemon slices
8 blueberries
2 teaspoons brown sugar
2 ounces rum
Soda water

In a rocks glass or cocktail shaker, muddle the lemon slices, blueberries and brown sugar together. Pour into a tom collins glass, then fill the glass with ice. Pour the rum over the ice, then fill the glass with soda water. Garnish with additional blueberries and a wedge of lemon.