The herbs, roots and citrus rinds are allowed to soak in the base liquor before caramel is added. Averna is sweet, thick and has a gently herbal bitterness. It is 29% alc/volume (formerly 32%) and distilled and bottled in Italy.Averna is a classic digestif, often served on the rocks or neat. It also is an ingredient in some cocktails.Amaro (Italian for "bitter") is an Italian herbal liqueur that is commonly drunk as an after-dinner digestif. It usually has a bitter-sweet flavor, sometimes syrupy, and has an alcohol content between 16% and 40%.Amaro is typically produced by macerating herbs, roots, flowers, bark, and/or citrus peels in alcohol, either neutral spirits or wine, mixing the filtrate with sugar syrup, and allowing the mixture to age in casks or bottles.Many commercial bottlers trace their recipe or production to the 19th century. Recipes often originated in monasteries or pharmacies.Amaro is typically drunk neat, sometimes with a citrus wedge. It may also be drunk on ice or with tonic water.