Switch off the heat. Add the remaining tapioca starch and mix well.

Rub it on the table until it become a smooth dough.

Cut the dough into small pieces and rub them into small balls. Put each ball into a bowl with tapioca starch to make sure they won't stick together.

If the bubbles are not in the same size, pick the bigger one out, to ensure the boiling time is accurate.

Boil the bubble in boiling water for 6 to 8 minutes.

Put the bubbles into iced water so they can cool down quickly and avoid them from sticking to each other.

You can add the bubbles to your favorite drink! Serve!