Lunches at our house are often planned at the last minute, but I get so excited by the prospect of seeing friends, I often invite more people than is wise. At such times, risottos are always a good idea, because they require little prep, and are boosted by having a killer stock in the freezer (or from a nearby shop). They’re a marvellous foil for vibrant, seasonal vegetables and are invariably delicious. For that perfect, light texture, beat the rice with the same vigour as you’d give to jiving to a favourite tune.