Heat oil, saute onion til translucent, add in washed and drained cabbage, stir until soften
Add in caraway/fennel seeds, stir well
Pour in stock bring to boil
Lower heat, add in paste, stir
Add in cube
Adjust to taste with salt sugar and black pepper
Cook until tender
Once cabbage is tender, dissolve 1/8 c flour in cold water then pour into soup and cook to thicken, then serve!
Serve hot accompanied with bread etc