<human>:  How can I make my own vegetable broth?
<bot>: To make your own vegetable broth, you will need a selection of fresh vegetables, such as carrots, onions, celery, garlic, and mushrooms. Chop the vegetables into small cubes and add to a large pot with some olive oil. Fry for a few minutes, stirring to prevent burning. Once the vegetables are slightly softened, add stock, salt and pepper to taste, and any other herbs or spices you would like. Bring to a boil and then reduce the heat to a simmer, cooking for around 30 minutes. Once the vegetables are fork-tender, strain them out and reserve the liquid, your vegetable broth is now ready to use!