Devein and chop the shrimp into small pieces. Finely chop the green onion.

In a bowl, mix hanpen, egg, shrimp, potato starch, chopped green onion, and a pinch of salt and pepper. Form the mixture into small balls.

Heat 1 tbsp of salad oil in a frying pan. Place the shrimp balls in the pan and cook over medium heat until golden brown on one side. Flip and cook the other side, then cover with a lid and steam for 5 minutes.

While the shrimp balls are steaming, prepare the sauce. Combine all sauce ingredients in a microwave-safe container and mix well. Heat in the microwave at 600W for 30 seconds at a time, stirring after each interval, for a total of 2 minutes.