There was a British singing outfit in the Seventies called Instant Sunshine and this is it in soup form. The silkiness comes from the peppers which are quickly blitzed in a hot oven, then blended with the sweetcorn which is cooked in stock. There's nothing more to it, and it is health-giving and mood-boosting — providing sunshine on a rainy day. I like this smooth and velvety with nuggets of the sweetcorn running through it, though you can make it as liquidized or as rough as you please. As…