Place the cold water and gelatine powder in a small bowl and set aside for 5-10 minutes.

Meanwhile, combine the cream, sugar, vanilla extract and lavender in a small saucepan over medium heat.

Allow the mixture to simmer for a few minutes then remove the saucepan from the heat.

Stir in the gelatine mixture and food colouring if adding pour into 4 small glasses and place in the fridge for at least 4 hours.

Decorate with fresh lavender.