How to cook Sardines in tomato sauce

Sardines in tomato sauce
Ingredients:
1 kilo tamban (sardines)
1000cc water( babaran ng isda)
1/4 cup salt
1 white onion
1 buong bawang
2 can tomato sauce
1/2 tbsp salt
100cc water
1 tbsp mix pamenta
2 pcs laurel
5 pcs chili
1 tbsp atchuete oil
1/2 tbsp salt
1 tbsp soy sauce