Edible crystals, or kohakutou, is a Japanese candy made from agar agar. Besides looking like real jewels, what makes these crystal candies so special is the texture — they have a crisp exterior shell while the interior of the candies are soft and jelly-like. The candies are a great blank canvas for any flavouring or colours of your choice. Because the base of these gummies is agar agar, these edible crystals are vegan!