Fruit in Eau De Vie

Name: Fruit in Eau De Vie
Yield: Fills a 1 litre (35 fl oz/4 cup) Jar
Ingredients: 250 g (9 oz) strawberries, hulled and halved; 150 g (5½ oz) raspberries; 150 g (5½ oz) blackberries; 2 tablespoons caster (superfine) sugar; eau de vie (see Note)