Chilled Turkish Yoghurt Drink (Ayran)

1 1/4 cups plain yogurt
2 cups carbonated water (Perrier plain)
½ teaspoon salt
1 tablespoon fresh lemon juice
1 ½ teaspoons ground cumin
---------
Mix all ingredients in a blender.
Taste, you may want to increase the salt or lemon juice.
Chill and serve cool, like a beverage.
Serves 6-8