Keen followers of the Osa Cookery Book will be aware that the unique philosophy behind this growing collection of recipes is less is more. Not less food, of course, but less effort. In keeping with this, I present ‘sandia’. Take one sandia (watermelon) and one knife. Lay your fruit on the grass and slash it in half. Voila! Eat with a spoon and after the requisite 5 minute pause, jump into the sea to wash off the juice.