For what the above is suggesting, this would be researching and understanding Greek Religion and religious rites. When trying to involve yourself with any deity, you should understand their historical worship.
As a whole, Hekate is associated with cleansing, protection, guiding, esoteric herbalism (root work), and necromancy.
Hekate is a house hold goddess who protects the home and its inhabitants. In this role, she's an ouranic deity because she's over an aspect of living life. Wine, olive oil, and grains are traditional offerings for ouranic rites.
Interestingly, she has a festival every new moon called Hekate's Deipnon, or Hekate's Supper. (This is happening at the time I'm posting it on my side of the world.) Understand, this is Hekate in a chthonic form so chthonic ritual should be followed. This means she's over the dead at this time. Traditional offerings for this time are boiled eggs, leeks, and onions.
Like all deities, she shouldn't be pigeonholed as a "Goddess of ______________." Deities are more complex than this. There's a lot more than just a wikipedia page about her.