Make Enlitened Onion Mixture: Heat 2 tablespoons oil together in a large non-stick skillet over medium heat for a few seconds. Add 2 cups leeks, white and light green parts, thinly sliced, 1 cup onions, peeled and diced small and start to brown, stirring occasionally. Add 3 cloves garlic, peeled and minced and a few drops of water, the mixture will start to brown.Cook another few minutes, scraping the bottom of the pan so that nothing sticks.
In a small saucepan, mix together the wine, vinegar, lemon juice and sugar substitute. Add Enlitened onion mixture and bring to a boil.
Mix soy flour (and soup powder) with cold water and melted apricot jam until there are no lumps. Lower the heat and add slowly to the pot, constantly stirring with a wooden spoon so that no lumps form.
While mixing, add hot stock or boiling water. Bring contents to a boil and stir until thick.