Doutor "Taiwanese Lemonade Soda" is sweet and sour! Cool blue jelly and carbonation, topped with sliced Taiwanese lemon
I actually purchased and drank the "Taiwanese Lemonade Soda" sold by Doutor. It combines a lemon sauce made from Taiwanese lemon juice, colorful jelly made from pineapple juice, and carbonated soda, topped with sliced Taiwanese lemons.