For the kohlrabi vegetables, remove the greens from the kohlrabi – keeping the small leaves – and peel.
Cut the kohlrabi into small strips. Cut the tender kohlrabi leaves into fine strips. Melt the butter in a pot. Add the kohlrabi strips and season with a little sugar and salt. Cover and simmer until tender – stirring frequently so that nothing burns.
Finally, add the kohlrabi leaves and season to taste with a little sugar and salt. Steam again very briefly so that the leaves become warm – but not too soft.
Serve the kohlrabi vegetables.