Minecraft Legends

You must build 10 cauldrons in a world
The easiest way to get this achievement is by

Go to the campaign ===> Custom Game ====> Resources ====> Starting resource (max everything) ====> Player tools ====> Tech Tree , you can activate cauldron only or everything ====> Press to Save and Continue ====> start the world (wait for custscene) ====> you will spawn in the well , press and press 2x To enter
"Player Building Melodies" ====> search the cauldron ====> put it in one of your hotbar ====> choose the cauldron by pressing 2x ====> press to close the book ====> press To switch to building construction mode Hotbar ====> choose the cauldron ====> start building 10 cauldrons by pressing then

Congratulation , you got the achievement :)