Scottish Surprise

Fill a cocktail glass with fresh ice cubes and chill briefly.

Place some ice cubes in a shaker and add whisky, passion fruit nectar, lemon juice, grenadine and a dash of Angostura.

Securely close the shaker and shake vigorously until it becomes noticeably cold on the outside.

Strain the cocktail through a sieve into the prepared glass with ice cubes.

Garnish with a cocktail cherry and a slice of lemon and serve immediately.