Mix the two flours with the water, wrap in cling film and leave to rest for 30 minutes. Dice the leeks and fry them in a pan with oil, garlic and chilli pepper. Add the halved cherry tomatoes and cook for 5 minutes. Steam the broccoli and mix it with oil, anchovies, salt and pepper. Roll the pasta into rolls and shape them into caserecce. Cook the pasta in salted water, flavour in the pan with the leeks and grated Grana Padano Fattorie Cremona. Serve with the broccoli puree.