Opera Cocktail

Ingredients:
1/2 a fluid ounce or 1.5 centilitres of Dubonnet
1 & 1/2 fluid ounces or 4.45 centilitres of Gin
1 Tablespoon Maraschino Liqueur
1 & 1/2 fluid ounces or 4.45 centilitres of Gin
1 Tablespoon Maraschino Liqueur
Instructions:
Stir with ice, strain into a cocktail glass, and serve.
