Mix the cream, condensed milk and passion fruit in a bowl. Melt the gelatin in a bowl with a cup of warm water, add each leaf one at a time. Once the gelatin is liquid you can add to the cream mixture stirring it well in. Pour the mixture into a large bowl or 8-10 individual ice cream bowls, and leave in the fridge for about 4 hours till set. You can also leave some of the passion fruit to the side just to put a little on the top once set.
You can use this method with any other fruit pulp, just replace the passion fruit. Raspberries, strawberries, mango all work well, just pulp the fruit down.