Simmer lentils with 2 - 3 times the amount of water for about 12 minutes. Then puree.
Stir in lupine flour.
Allow the mixture to swell for 15 minutes.
Simmer quinoa with 3 times the amount of water for 20 minutes.
Then add to the lentil mixture.
Finish with the spices and herbs.
Mix in enough potato flour to make a firmer mixture.
Bring water to a boil.
Form small dumplings from the mixture and place them in the hot water. Then turn down. Leave to infuse for 10 minutes.
When the dumplings float to the top, they are ready. Then remove them with a slotted spoon.
Season the broth with mustard, salt, pepper, fenugreek and soy sauce and thicken with flour.
Then put the dumplings back into the sauce.