Asparagus, Artichoke and Broad Bean Salad

May and June are my favourite months. The flatracing season really gets into gear, there’s a chance of a bit of sunshine, smells of fresh-cut grass arrive – oh, and it’s asparagus and broad bean time again; English asparagus, that is, which has only a few miles and a few hours to travel from bed to table, and my favourite bean of the year. Combining them in a salad with that other delicacy, the globe artichoke, and some fresh marjoram and a hazelnut oil dressing is a perfect proof of the wh