The Autumn Aperitif Courtesy of Ketel One. Ingredients1 ounce Ketel One Oranje vodka1 ounce sweet vermouth¼ ounce of Zwack herbal liqueur5 dashes angostura bittersOrange peelInstructionsPour Ketel One Oranje, sweet vermouth, Zwack and agostura bitters in a rocks glass over ice. Gently stir. Garnish with a an orange peel.