For the dough: 3/4 cup glutinous rice flour (100 grams), 4 tablespoons sugar (not heaping), 9 tablespoons water • For the filling: 1/3 cup split mung beans, peeled (50 grams), 2 tablespoons coconut milk, 3 tablespoons sugar, a pinch of vanilla sugar • For the syrup: 9 tablespoons sugar, 1 piece of ginger, 2 tablespoons tapioca starch, 4 1/4 cups water (1 liter) • coconut milk (100 grams), 3 tablespoons sugar