Dubonnet Highball Recipe 16Jul201916Jul2007 Ingredients 1 3/4 oz Dubonnet French vermouth8 oz ginger ale1 lemon spiral Pour dubonnet over ice cubes in a collins glass, and fill with ginger ale. Add a spiral of lemon peel, and serve. Spread the love Related posts: Tangerine Dream Recipe Up All Night Recipe Shannon On The Beach Recipe The Spiff Recipe