Japanese Soboro Donburi: Sweet and Savory Ground Pork and Egg Rice Bowl

Bahan-bahan (4 porsi)

• 1 lb ground pork
• 1/4 cup soy sauce (low sodium)
• 2 tbsp mirin
• 2 tbsp sake
• 2 tbsp sugar
• 4 large eggs
• 1 -2 tsp sugar (optional)
• 1/4 tsp salt (or to taste)
• rice
• sliced green onions