Carrots and onion cooked in vegetable broth and blended smooth, finished with a little cream. Seven carrots, half an hour, and no flour anywhere in it. Serves four.
Blending hot liquid needs care. Steam expands inside a sealed jug and can push the lid off, so fill it no more than halfway, hold the lid down with a folded cloth and start on the lowest speed. A stick blender used in the pot avoids the problem entirely. The carrots have to be soft before anything is blended. Fifteen minutes is the figure and a knife is the test: it should go into a slice with no resistance at all. Blending does not cook, it only breaks up what is already tender, and a firm piece going in is a firm piece coming out. There is no flour and no roux in this soup. What gives it body is seven carrots blended into a litre of broth, and the 150 ml of cream at the end is for richness rather than thickness. The recipe's note offers blending the cream in rather than stirring it, which gives a paler, more uniform soup.