
Steam the sweet potato chunks for 15-20 minutes until soft.
Mash the sweet potatoes using a ricer or fork, then mix with salt, sugar, baking powder, tapioca flour, and cornstarch.
Use a spatula or your hands to knead until a smooth dough forms (about 5-8 minutes).
Roll the dough into ¾-inch balls (~25g each).
Heat neutral oil to 350°F (175°C) and fry until golden brown (about 3 minutes).
For an extra fluffy texture, press down on the balls with a spatula once they float.
Best served fresh, but can be reheated in an air fryer for a crispy texture.