Wikipedia Article about Kalamansi (or calamondin) juice on Wikipedia The juice extracted by crushing the whole fruit makes a flavorful drink similar to lemonade, and a liqueur can also be made from the whole fruits, in combination with vodka and sugar. In Asia the juice is used to baste fish, fowl, and pork. Kalamansi marmalade is made in the same way as orange marmalade—with a bit more sugar, providing a delicious spread for toast at breakfast. Like other citrus fruits, the calamansi is high in vitamin C, and the juice can be a good vitamin source.