Chop the walnuts. Peel and chop the onion. Peel, wash and roughly dice beetroot, celery and potatoes.
Heat 1 tablespoon of butter in a large saucepan. Roast the walnuts and almonds in it, remove. Heat the oil in the fat. Sauté onion in it. Steam vegetables and potatoes briefly. Stir in 1 tsp. sugar. 1 1⁄4 Add l water and stock, bring to the boil.
Cover and cook for 25-30 minutes.
Finely grate the cheese. Bring milk, 2 tablespoons butter and 1⁄2 TL salt to the boil. Stir in semolina and stir until the mixture separates from the bottom of the pot as a lump. Let it cool down briefly, then stir in egg and cheese.
Use two moistened tablespoons to remove the dumplings from the mixture. Cook in boiling salt water for 8-10 minutes. Lift them out and let them drain.
Wash the chives and cut into small rolls. Puree the soup and season to taste with salt, pepper, sugar and lemon juice. Serve with 1 tbsp. crème fraîche and dumplings. Sprinkle with nut mix and chives.