Tschunk is a cocktail made with Club Mate, a popular German caffeinated carbonated drink with mate-extract. Made popular in the hacker scene, Tschunk is prepared in the same way as Cuba Libre, but with Club Mate instead of cola. Crush limes and brown sugar in a tall glass, then fill with rum and Club Mate.
- Cut half an organic lime into cubes.
- Pour brown sugar into a tall cocktail glass.
- Add the lime cubes to the glass and mash.
- Add crushed ice.
- Pour the rum over it.
- Top up with Club Mate.