Put the gnocchi in boiling salted water, bring to the boil and cook for about 2 minutes (until they float on top). Pour into a sieve, quench briefly and drain
Cut salmon into strips. Wash the dill, shake dry and cut finely except for a few flags for garnishing. Peel onion and chop finely. Heat oil in a pan and fry onion until transparent. Add cream cheese, cream and stock and bring to the boil while stirring constantly. Simmer for 2-3 minutes
Stir in salmon and dill, except for 1 teaspoon for garnishing. Season to taste with salt, pepper and lemon juice. Add gnocchi, heat briefly. Sprinkle gnocchi in sauce with dill and arrange dill flags on plates