Water Chestnut Cake (aka Ma Tai Gou in Cantonese) is a light, sweet, crunchy, gelatinous cake. Made of just water chestnut flour, fresh water chestnuts, and sugar water, water chestnut cake is a simple Chinese New Year dessert or snack popular among Cantonese people. It is also frequently seen offered at dim sum restaurants. However, ingredients are not always available and are most often found around the Chinese New Year. Fresh water chestnuts (grown from the plant: eleocharis dulcis) are not nuts, but rather are a vegetable that are grown in marshes or under water in mud. They have tubular green leaves and the water chestnuts are the bulbs that grow on the roots underwater. You need to peel the bulbs to cook and eat them. Fresh bulbs are hard when you press on them and when boiled have a firm and crunchy texture.