Prepare the cannellini beans ahead, according to package directions, until almost soft. Drain and set aside. In a separate pot, saute the garlic in oil until a little toasty. Add celery and onions and saute. Add the beans and vegetable broth plus some water, using enough water to make a very thick soup. Simmer until the beans are soft, about a half hour.Add parsley, hot sauce and salt just before serving. You can make this recipe in a pressure cooker and it will take about 11 minutes under pressure on the second red ring.