In this project, the pearls were made from strawberry puree and the drink was strawberry milk! I have made this in real life (With the help of @HippoMasterHippo.) and it tastes delicious! If you cannot find tapioca starch, it may just be under a different name. Tapioca starch is also called tapioca flour. You cannot use regular flour. Not Included: Make sure to floofffff your uncooked pearls in tapioca starch so they do not stick to each other.