Easy and delicious pasta and bean soup, Pasta e Fagioli, adapted from Danilo Cortellini's recipe book 4 Grosvenor Square
Heat the olive oil in large pot, sweat the onions, garlic, carrots, celery, potatoes and carrots until they have softened a little
Add the stock, chilli, and the tomato concentrate. Simmer for around 30 minutes until the vegetables are soft. Blend until it's smooth.