Dried split fava beans are very easy to use, they cook down after a slow simmer and make a lovely smooth soup
Heat the butter and fry the leeks until soft, approx. 10 mins
Add the thyme and stir through
Add the beans and stir trough
Add the stock, bring to the boil then simmer for 20-30 mins until the beans have softened
Blitz the soup and season then serve drizzled with oil and chopped fresh thyme if you are using it