Start by crushing up your raspberries. I blended them.
If you want to remove the seeds, for a smooth texture of the ice cream, you can pass the mashed raspberries through a sieve. I like a bit of texture so I let them in.
Add the sugar and water in a small pot and put it over a medium heat.
Mix regularly, so that the sugar melts.
Meanwhile, add the egg whites in a mixer and start mixing on a low speed.
Put a cooking thermometer in the pot, and take the sugar syrup off the heat when it reaches 121 degrees Celsius.
By this time, the egg whites should have started to fluff up and stiffen.
Switch to the maximum level of the mixer, and add the sugar syrup, slowly, whilst still mixing the egg whites.
Once you finished it, leave the mixer on the same speed, and start adding the raspberry puree.
Mix until the meringue cools down to a room temperature.
Transfer the mousse from the mixer to serving bowls, and put it in the freezer for at least a couple of hours.
Serve cold with extra raspberries on top.