You will need:
Yesterday I made two different varieties:
Green tea (flavored with orange and black currant), raspberries and kiwi green.
And green tea, raspberry and sorrel.
Both were very fresh and sweet. Perfect to the (potential) summer heat. You can experiment how much anything with ingredients like yogurt (like these), juice, juices, spices, fruits, berries… Oh, and they are going into the freezer as well.