Saute Meat And Onions In Oil For 10 Minutes. Add The 2 Tablespoons Of Water And Simmer Until The Water Evaporates. Sprinkle With Flour, Salt And Pepper. Add Water And Simmer For 30 Minutes. Add Celeriac And Simmer For Another 30 Minutes. Add Water As Necessary. Beat Eggs With Lemon Juice, Add Slowly To The Meat And Simmer Until Warm. Serve With Rice Or Pasta.