Pindang Ikan - Spicy whitefish

Ingredients

• 1 large onion
• 2 garlic cloves
• sunflower oil or any other neutral oil
• 2 lemongrass stalks
• 2 pieces of galanga (laos root)
• 1 teaspoon trassi (strong shrimp paste)
• 1 teaspoon asam tamarind (soy bean paste)
• 4 green + 1 red (small) lombok chilies
• 1 cube of beef stock
• 1 teaspoon sambal (store-bought are make your own)
• 2 teaspoon turmeric
• 4 to 6 frozen coal-fish (or other white fish)