Boil the beetroot tubers in a saucepan with water for about 2 hours until they have softened.
Take the tubers out of the water, rinse under cold water, peel with a knife and grate on the kitchen grater.
Put the beetroot rasps in a bowl and let cool. After cooling, add the yoghurt, press in the garlic cloves, round off with salt, olive oil and lemon juice and stir well.
Place on a serving plate and garnish with the parsley.