From 1910:
Steep dandelion flowers in boiling water for ten minutes and strain off the liquid, pressing hard through a cheese cloth bag. Sweeten to taste and add brandy in the proportion of a pint to every four gallons of liquid. Put into uncorked bottles and keep in a cool place, covering the mouths of the bottles with mosquito netting to exclude insects and dust. When fermentation ceases, draw off, strain and bottle.
Elderberry Wine is made of the blossom of the plant, and exactly as dandelion wine is made. Or you may brew it of the berries, as you would cherry wine or that made from currants. This is highly medicinal and less pleasant of flavor than that made from the blossoms.