Suze is a bitter aperitif flavored with gentian (root of Gentiana lutea), characterized by its slightly bitter, herbaceous, and mildly sweet flavor, with notes of gentian root, citrus, vanilla, and spices. It is traditionally served chilled with ice or mixed with soda or tonic water, and is also a highly popular base in modern cocktails such as the White Negroni. The gentian used is hand-harvested in the mountains and infused to extract its intense and distinctive flavors.