Make the simple syrup by mixing 1 cup sugar and 1 cup water in a small saucepan, heat and stir until the sugar is dissolved. Refrigerate any remaining and use up within a month.
Fill a cocktail shaker with ice and add in the gin, Chambord, lemon juice and simple syrup.
Shake and pour into an appropriate glass.
Garnish with floating frozen Saskatoon berries if available and a twist of lemon.