Chartreuse Yellow Liqueur which has a milder and sweeter flavor and aroma, made from 130 herbs and plants macerated in alcohol and steeped for about 8 hours and is aged on oak barrels. A last maceration of plants gives its color to the liqueur. Chartreuse Yellow Liqueur is an aromatic liqueur, originally made by French Carthusian monks. Chartreuse come in two varieties, green and yellow.