
Make the DoughIn a medium-sized bowl, combine the glutinous rice flour, white sugar, and salt. Mix well. Gradually add hot water while stirring to form a dough. (Tip: Don’t add all the water at once. Add it little by little, mixing in between to check the consistency. The dough shouldn’t be overly wet or fully soaked – aim for a slightly dry texture where you might think, “Does it need just a bit more water?” That’s the perfect balance. As you continue mixing, the dough will naturally come together.)
Shape the BallsTake a small piece of dough and roll it into a ball. Keep the remaining dough covered with a damp towel or plastic wrap so it doesn’t dry out while you work. If you’d like to add a sweet red bean filling, gently press the center of the dough ball to create a small indentation. Add about 10 g (0.35 oz) of filling, then carefully seal and roll it back into a smooth ball. Try to keep the sizes consistent so they cook evenly. Repeat with the remaining dough — you should end up with about 38 to 40 rice cake balls if each piece is around 22 g (0.78 oz) before adding the filling.
Cook the Rice BallsBring a pot of water to a boil. Once boiling, gently drop in the dough balls. When they float to the surface, add a small splash of cold water to lower the temperature slightly. After they float up again, remove them with a slotted spoon and transfer them to a bowl of cold water to cool briefly. Don’t leave them in the cold water for too long – if they become too cold, the coating won’t stick well and may peel off.
Coat the GyeongdanRoll the rice balls in a bowl of your chosen coating until evenly covered. (Tip: Castella crumbs give a soft, sweet finish and beautiful texture, and you can add a little purple sweet potato powder for a lovely pop of color.)
ServeLet the rice balls cool completely, then serve as a snack or dessert. The flavor is best once they’ve cooled, and for the freshest taste and texture, enjoy them on the same day they’re made.