Wash, scrape or peel the potatoes and just cover with salt water. Bring to the boil, cover and cook for 15-20 minutes. In the meantime, pierce the eggs and put them in plenty of boiling water. Boil for 10 minutes and rinse with cold water. Clean, wash and dice the carrots.
Peel and finely dice the onion. Heat 10 g fat in a pot. Sauté onion and carrots in it. Add vegetable stock, bring to the boil and simmer for about 5 minutes. Pour the vegetables onto a sieve and collect the vegetable stock. Heat 30 g fat in a saucepan and sauté the flour in it. Add vegetable stock and milk while stirring, bring to the boil and simmer for about 5 minutes. Clean and wash spring onions and cut into fine rings. Peel and cut the eggs into six. Stir mustard into the sauce and season with salt, pepper and sugar.
Add vegetable stock and milk while stirring, bring to the boil and simmer for about 5 minutes. Clean and wash spring onions and cut into fine rings. Peel and cut the eggs into six. Stir mustard into the sauce and season with salt, pepper and sugar. Add the carrots and eggs to the sauce and warm up briefly. Drain the potatoes, let them evaporate and arrange them on plates with the egg ragout. Serve sprinkled with spring onions