Ingredients:

-1/2 cup blackberry

-A bunch of mint leaves

-1/2 cup sugar

-2 tablespoons fresh lemon juice

-2 tablespoons fresh lime juice

-1 cup selzer water

-1/2 cup vodka

-1 cup ice cubes

Method:

1. Muddle blackberries and mint leaves, sugar, lemon and lime juice in a pitcher. Make sure mints are slightly bruised and blackberries are mostly crushed. Add the selzer water, vodka and ice cubes. Stir to mix well. Serve cold.

Source: rasamalaysia.com