If I just change one blueprint How to cook less .uasset after once building

How can I avoid to cook all things every time I building and cooking the game even I just deleted one blueprint’s function.

Hi ryuikuya:

This has been resolved as of UE4.8.3: Please read the “Cooker” section in the following release notes for UE4.8:

https://docs.unrealengine.com/latest/INT/Support/Builds/ReleaseNotes/2015/4_8/index.html