Wash basil, shake dry, chop coarsely. Peel and chop the onion. Melt the fat, fry the onion in it, dust with flour and sauté. Add cream and stock while stirring constantly and bring to the boil. Add peas, season with salt and pepper and simmer for about 5 minutes. Add basil. Puree the soup with the chopping stick.
Season to taste again. Dab sausages dry, cut them into pieces and put them on skewers. Boil up plenty of water. Leave the skewers to simmer on low heat for about 3 minutes. Serve the soup in portions with 1 blob of double cream and sausage skewers. Grind a little pepper on top. Serve sprinkled with two basil leaves