Place coconut milk, cream and 3/4 cup of sugar into a saucepan over low heat. Cook, stirring, for 3 to 5 minutes or until sugar dissolves (do not boil). Remove from heat.
Place hot water into a small bowl. Sprinkle over gelatine. Whisk with a fork until dissolved. Add to coconut milk mixture. Whisk well to combine.
Rinse 8 x 1/2-cup capacity dishes or moulds. Shake out excess water. Pour in coconut mixture. Cover. Refrigerate for 5 hours, or overnight if time permits, until set.
Place strawberries, blueberries and raspberries into a bowl. Sprinkle with remaining sugar. Cover. Refrigerate for 30 minutes.
Turn panna cotta onto plates. Serve with berries and any juice/coulis
Fruit coulis
If you want to make a coulis, you can either use frozen or fresh fruit. Add the berries into a pan, add some icing sugar and let it boil till berries are soft. Then transfer to a sieve and put the juice through.