To make the turmeric paste:
Combine the turmeric powder and water in a small saucepan. Bring to a boil and allow to cook over low or medium heat until it forms a thick paste (when almost all of the water has been cooked off ). This can be stored in the refrigerator.
To make golden milk:
For each cup of Golden Milk, blend together in a saucepan the turmeric paste, milk, ghee, and sweetener.
Stir continuously over low heat, and bring the milk just to the boiling point (~180°). You may transfer the mixture to a blender to foam the Golden Milk, or you may simply drink it as is.
Sprinkle a little cinnamon and/or nutmeg on top for an added kick.