Chop all the vegetables.
Place the chopped vegetables in an oven tray.
Pour the rapeseed oil over the vegetables.
Add salt and pepper.
Roast the vegetables in the oven at 200°C fan for 30 minutes.
Add the roasted vegetables, including the oil, to a large saucepan.
Add the vegetable bouillon and cover with boiling water until just covered.
Heat for about two minutes, then turn off the hob.
Add the basil and cream, and blend to a smooth finish.
