Cho ¾ cốc (100gr) đường vào máy xay. Thêm đá. Đổ sữa lắc ra cốc và thưởng thức.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Blend for 5 - 10 seconds more. This will work best with pre-crushed ice. Watch it as it blends -- if it blends too much, it will get quite runny. Consume immediately -- it's best when cold and the ice still gives it texture.