Carefully wash the beetroot without damaging the skin or roots and cook in boiling water for about 25 minutes. Rinse with cold water, peel and cut into strips. Mix vinegar, salt, pepper, honey and oil and marinate beetroot.
In the meantime, roast the nuts in a pan without fat and take them out. Clean and wash spring onions and cut into rings. Chop the nuts coarsely. Mix the nuts and onions into the beetroot and add salt, pepper and vinegar to taste if necessary.
Arrange salad on plates and garnish with chervil.