You can use frozen yogurt as a starter, which is fermented from fresh milk and is rich in protein, calcium and vitamins. Yogurt can be a great alternative especially for those who can't enjoy milk due to lactose intolerance.

But many yogurts have been made into "desserts" full of sugar and processed fruits, and it's these "packages" that are used to disguise them as health foods. Therefore, it is best to buy plain yogurt and add some fruit yourself if necessary.

Sexy starch can be added to the ingredients separately or dry-mixed with other food gels and then added. Considering that starch and food gums are mostly hydrophilic polymers, it is best to mix them with the right amount of sugar when you add them to the mix.

Dissolve in hot milk under high speed stirring (55℃～65℃, the selection of the specific temperature depends on the instructions of modified starch) to improve its dispersion.

Baidu Encyclopedia-Yogurt