Two raw beetroots blended with water and sugar. Three ingredients, five minutes, and it stains everything it touches.
Slice the beetroot thinly before it goes in. Raw beetroot is dense and a blender struggles with thick chunks, leaving gritty pieces however long it runs. Straining is optional and depends on your blender: a powerful one gives a juice smooth enough to drink as it is. Beetroot stains hands, boards and cloth, and the colour on your hands takes a day to fade. A squeeze of lime or orange juice cuts the earthiness considerably if the flavour is too much on its own.