Peel, wash and chop the carrot. Peel and chop the onion. Fry in hot fat. Steam the carrot briefly. Deglaze with tomatoes. Bring to the boil and simmer for about 10 minutes
Wash the basil. Pluck the leaves and cut them finely, except for a few for garnishing. Puree in half the cream. Add the rest of the cream and whip until semi-stiff
Puree the soup with the cutting stick. Season to taste with stock and cayenne pepper. Serve with basil cream. Garnish with remaining basil