Otak-Otak - [Indonesian] Grilled Fish Cakes

Ingredients:

For the fish cakes:

• 1 pound white fish fillet (preferably spanish mackerel), cubed
• 1/3 cup coconut milk
• 4 tablespoons tapioca starch (substitute with corn starch if not available)
• 1 egg white
• 1 teaspoon sugar
• 2 tablespoons chopped green onions
• 1 1/2 teaspoon salt
• 1/2 teaspoon ground white pepper 
• Banana leaves, washed and wiped, cut into 4x6 for wrapping
• Toothpicks

For the spicy peanut sauce:

• 1/2 cup fried peanuts
• 2-3 red Thai chili peppers
• 1/2 teaspoon salt
• 1 tablespoon sugar
• 2/3 to 1 cup water
• 2-3 tablespoons lime juice, or rice vinegar

Directions:

• To make fish cakes: In a food processor, pulse the fish until it forms a paste. Transfer fish paste into a large glass mixing bowl. Add coconut milk, tapioca starch, egg white, sugar, green onions, salt and pepper. Mix all the ingredients until well blended.
• Take about 2 tablespoons of fish mixture and place it in the center of a banana leaf. Wrap the fish mixture by rolling the leaf tightly, and secure both ends with toothpicks. Trim the ends with scissors if necessary. Repeat the process with the remaining fish mixture. Place the fish packets onto the preheated grill and cook for about 15 minutes, turning them over after 6 minutes for even cooking. (If using the oven, place the packets in a single layer on a baking sheet, and bake in the top third of the 450 degree oven).
• To make spicy peanut sauce: Place fried peanut and chili peppers in a food processor and pulse until smooth. Transfer to a bowl. Add water, sugar, lime juice/vinegar, water and salt. Mix all the ingredients together until well blended.
• Serve the fish cakes warm with the dipping sauce.