This page explains how to start and complete the The Perfect Drink shrine quest.
How to Start the Quest
You will need to reach Gerudo Town and free Divine Beast Vah Nabooris before you can start this quest. Talk to Pokki at the East Barrens in Gerudo Desert to start the quest. The East Barrens are in the southeast part of the desert.
How to Complete the Quest
Check the Misae Suma Shrine page for details on completing the quest.