Boil eggs in boiling water for about 9 minutes. Wash the asparagus, cut off the woody ends. Cut asparagus into large pieces. Cut asparagus tips in half lengthwise. Heat 2 tbsp. oil and 2 tbsp. water in a pot.
Steam the asparagus tips covered for 4-5 minutes. Peel onion and garlic. Finely dice both. Peel, wash and cut the potatoes into large pieces. Take out asparagus tips and let them cool down.
Steam onion, garlic, asparagus pieces and potato in the pot for 3-4 minutes. Deglaze with broth and cream and cook covered for about 5-7 minutes. Take out eggs, quench, peel and chop. Heat 1 tablespoon of oil in a coated pan.
Press the sausage meat as small dumplings out of the skin and fry in hot oil all around for 4-5 minutes. Finely puree the soup, warm up the chopped egg and asparagus tips in it. Season to taste with salt, pepper, lemon juice and sugar.
Cut cress from the bed. Serve the soup with dumplings and sprinkle with cress.