This drink is for my Northern hemisphere friends because it is really not the weather for it right now. I know that a Brisbane winter is warmer than most Canadian or English summers so this is still good some sunny afternoons in winter here, but it is especially wonderful as either a summer brunch cocktail or on the balcony in front of a steamy sunset.
Using raspberries instead of ice cubes keeps the drink cool without watering it down, plus they look really pretty. Mint is so wonderfully invigorating and the half-half balance of soda water and cranberry is so much more refreshing than either one by themselves.
If you want to take it up a notch, you could substitute champagne for the soda water, or spike it with gin or vodka.
Brunch Punch: Raspberry and Cranberry Soda
½ cup soda water
½ cup cranberry juice
Simple instruction: get everything in a glass.