Warm cabbage with dinner the best in Silesia

I suggest white cabbage in Silesian style from old recipes as an addition to dinner.
Very delicious :)
Ingredients :
1 white cabbage (about 2 kg)
1 onion (medium)
30 grams of smoked bacon
1 tomato (medium flesh only)
2 tablespoons of vinegar
1 teaspoon of salt
1 teaspoon of vegeta
1 teaspoon of pepper
1 teaspoon of a grain of flavor
half a teaspoon of sugar
Mix 1 tablespoon of wheat flour with 2 tablespoons of water.