The Vienna Sour is a twist on the classic Whiskey Sour, with a Viennese twist. It combines whiskey, lemon juice, simple syrup, and a splash of apricot liqueur. The addition of apricot liqueur adds a fruity and slightly sweet flavor to this cocktail. Served over ice and garnished with a lemon twist, the Vienna Sour is a refreshing and balanced drink to enjoy in Vienna's vibrant nightlife scene.