Place the gelatin leaves in a small bowl with cold water to cover and let soak for a minute or two to soften.
Place the fruit purée and sugar in a medium saucepan over medium heat. Heat, stirring with a wooden spoon, for about 5 minutes, or until hot. Do not cook.
Remove the purée from the heat. Squeeze the excess water from the gelatin and add it to the hot purée, stirring to d