The "pearls" used in milk tea are semolina made from starch. They are usually soaked in syrup before being added to the milk tea to ensure that they remain sweet in the sweet milk tea.

How to make milk tea pearls:

1. Mix brown sugar and hot water and boil, add starch while it is still hot;

2. Pour the starch in a little at a time, stirring as you pour, until it forms a dough. If you find the dough is dry after pouring the liquid, you can continue to heat the water until it forms a ball;

3. Then rub the pearls. According to the size you like, roll a little dough and put it in your hand and roll it round. The polished pearls should be put on a plate sprinkled with cornstarch, otherwise they will be stained;

4. When the water in the pot boils, put in the kneaded pearls, and cook on medium heat for 15-20 minutes, turn off the heat when it's done, and simmer on low heat for 15 minutes.