Due to the fine texture of glutinous rice flour and the careful balance needed between the liquid ingredients and dry ingredients, this recipe benefits from being measured by weight (grams) as opposed to volume (cups).
You can also use the strawberry syrup recipe
from this Vegan Strawberry Milk if you want to make these tang yuan dango without refined sugars. You will only need half of the strawberry syrup recipe.
Recipe for the sticky rice balls adapted from the sticky rice wrappers from Lady and Pups Peanut Butter Sticky Rice Balls in Green Tea