There are two ways in which I make this dish, in first one, listed here, I use one pot to cook the vegetables and beans together. In the other I dice the vegetables and lightly saute them separately in butter. In both the vegetables are blended. The first version has a cleaner flavor, the second a slightly browned, heartier one. I'm not sure which I like better.    Ingredients:   450 g dried brown Borlotti beans, soaked overnight  2 onions cut into quarters (250-300