Boil the beetroots whole, until tender. Pick them out of the water and let them cool, reserving the water which will be a dark ruby red. Rub the beetroot skins off – wear gloves if you don’t want your hands stained red – and chop the beetroot roughly into 1cm cubes.
Soak the rice in warm water for half an hour, and wash it until the water runs clear. Drain as wel