Tuna Fish Sauce - cooking recipe

Ingredients

2 cans tuna fish in oil
2 garlic cloves, chopped
1 small onion, cut up
2 small cans tomato paste
2 cans water
1 bay leaf
some basil
rosemary to taste
1 tsp. sugar

Preparation

Mix and cook everything except tuna fish.
Add tuna fish last hour.
Cook 1 1/2 hours.