for Spirit & Liqueur Making
Most homebrew is about taking produce, brewing it and nurturing the flavours all the way through. With essences, it is the other way around. First make an alcohol solution, then flavour it at the end.
See Turbo Yeast to make your own. You can also use shop bought vodka.
Below is a listing of the many different sorts available. Spirits just require mixing. Sweeter beverages also use a Liqueur Base for body and sweetness.