Gin is a spirit flavoured with juniper berries and other botanicals. It is usually produced from a neutral spirit which is re-distilled, or sometimes just infused, with the added botanicals. Common botanicals include anise, coriander, cassia bark, citrus rinds etc. Juniper must be included. Some gins are aged in oak casks, which gives them a yellow colour. Gin evolved from Jenever/Genievre, a Dutch/Belgian spirit also flavoured with juniper.