Can be used in infusing spirit for vanilla flavours in Gin, Vodka, Bourbon, Rum
Can also be used in beer making. Vanilla can be added at any of several stages in the brewing process. Most commonly, vanilla beans or liquid vanilla extract is added either at the end of the boil during the whirlpool stage before wort is transferred for fermentation or post fermentation before packaging.
Beyond the spirit and the juniper berries, you can feel free to experiment with whatever botanicals you like. Some of the most commonly used gin botanicals (after juniper) are coriander seed, angelica root, citrus peel and cassia bark or cinnamon – but feel free to raid the spice cabinet and herb garden. You could try bay leaves, rosemary, liquorice powder, lavender, cardamom, cumin, fennel seeds, lemongrass…pretty much anything you fancy!
Check out this link for some info on ratios and some recipe ideas. https://www.lovebrewing.co.uk/guides/gin-recipes-using-botanicals/