Cocktail Recept: Southern comfort sour

A Southern comfort sour cocktail contains the following ingredients:

• 4 cl. Southern Comfort 
• 4 cl. Lemon juice
• 2 cl. Orange juice
• 1 cl. Sugar syrup
• 1 pair Ice Cubes

Put some ice cubes in a shaker.
Add the remaining ingredients.
Then shake the mix vigorously.
Pour the mixture through a strainer into a cocktail glass.
You can optionally add one or more ice cubes to the cocktail.
Serve the cocktail immediately.