Dice onions and gently fry in rice bran oil until golden. Add crushed garlic and grated ginger. Stir for 1 minute then add green chilli. Simmer for 3-4 minutes.
1 brown onion, rice bran oil, 2 cloves garlic, 1 knob ginger, 2 green chillies
Add 1/4 cup of water and cook for another 2 minutes.
Add tomatoes, salt to taste and let sauce thicken on low heat.
400 g tomatoes, salt
Add sardines, thyme, parsley and another 1/4 cup of water. Mix well and let simmer for another 5 minutes.