Delicious served with the pepperiness of a rocket salad and a squeeze of lemon. If you are lucky enough to see small calamari at the market, buy it, as it will be wonderfully tender and can be cooked whole. Larger calamari will also be tender but the key is to cook it quickly and over a high heat. Scoring the flesh looks attractive and also helps it cook a little faster; however, it is not necessary. Some fishmongers will clean calamari for you or at least show you how. There's really not that much to it, but if you have never cleaned calamari and want to know how, I recommend reading Marcella Hazan's step-by-step description in her book The Essentials of Classic Italian Cooking.