Slice the galangal, garlic, and green cardamom seeds.
Heat a pan and sauté the sliced galangal and garlic until fragrant.
Add the sardines and cook for 5 minutes on each side until they turn golden brown.
Pour in the coconut cream, add salt, sugar, and black pepper to taste.
Boil the mixture for 10 minutes, then crack an egg into the pan and let it simmer for another 2-3 minutes.
Serve hot with steamed rice.