Place the cream alternative, white chocolate Options drink powder and Vege-Gel into a large bowl. Whisk using an electric hand whisk until it is thick and has doubled in volume.
Carefully spoon the mousse into your chosen container and pop in the fridge for at least 2 hours, or ideally overnight, to set.
When ready to serve, turn out from the mould (if using) by dipping into some hot water (careful not to get the mousse wet!) and running a thin knife around the edge.
Make the coulis by placing all the remaining ingredients into a food processor and blitzing until blended. Place a bowl underneath a sieve and strain the coulis into it to remove all the seeds - you might need to push the liquid through the sieve with a spoon.
Serve the coulis on top of your mousse and enjoy!