Cocktails Recipes Opera Cocktail Recipe Ingredients 1/2 oz Dubonnet French vermouth1 1/2 oz gin1 tbsp maraschino liqueur Stir all ingredients with ice, strain into a cocktail glass, and serve. Spread the love Related posts: Weep-no-more Cocktail Recipe Mutiny Recipe Damn-your-eyes Recipe Napoleon Recipe Bentley Recipe Ante Recipe