Create banana leaf baskets by cutting leaves into circles and folding edges to form bowls.
Combine chopped lemongrass, galangal, turmeric, red onion, garlic, and kaffir lime leaves in a blender.
Add peanuts and coconut cream to the blender and blend until completely smooth to create kroeung paste.
Heat oil in a pan over medium heat and add the kroeung paste.
Add star anise to the pan and cook for 2-3 minutes until fragrant.
Season with salt and add a spoonful of coconut milk to loosen the mixture.
Add chopped fish to the pan and stir gently.
Let the mixture simmer for 3-4 minutes until fish begins to cook.
Beat eggs and gradually add to the pan, stirring constantly to prevent scrambling.
Add chopped noni leaves and mix gently.
Spoon the mixture into prepared banana leaf bowls.
Top each bowl with additional beaten egg.
Steam the filled banana leaf bowls for 10 minutes until custard is set.