How to make summer tangerine sugar, tutorial on how to make homemade summer tangerine sugar. Summer mandarin candy is not a citrus, but a best-selling dessert at Laos confectionery shop "Omatsu" in Kyoto, Japan. It is a delicious candy mixed with sugar, agar and citrus juice. If you are tempted, then follow me and learn to make summer orange sugar desserts with almost zero failure.