To make stock in a pressure cooker, cover all the ingredients with ... parsley stalks or fennel trimmings to the stock. Keep vegetable trimmings in a bag in the freezer, topping up as you acquire ...

In a pressure cooker, combine diced vegetables such as carrots, potatoes, celery, and green beans with vegetable broth, diced tomatoes, and a bouquet garni of fresh herbs like thyme and rosemary.