Stir in the rice, coating all over with the cooking juices in the pan. Add just enough stock to cover the rice, bring to a simmer and gently cook until all the liquid is absorbed. Continue adding the stock a ladleful at a time, and gently cook. Just before the final ladleful of stock, add the broad beans and stir through, cooking
for 3-4 mins until tender. Remove the chorizo, slice thinly, return to the pan and mix through before serving.