Stir-Fried Pork Liver and Garlic Chives

Bahan-bahan (4 porsi)

• ½ lb pork liver ((choose fresh liver with a bright red color and a glossy sheen))
• 2 cups ice cubes
• ½ cup milk ((or enough to cover))
• ⅓ bag bean sprouts
• 4 oz garlic chives (Chinese chives or Nira)
• ½ cup potato starch ((for coating the liver))
• 2 Tbsp toasted sesame oil ((divided))
• 2 Tbsp neutral oil
• 2 inches ginger ((2 Tbsp grated, with juice))
• 2 cloves garlic ((1 tsp grated))
• 2 Tbsp sake
• 2 tsp soy sauce
• 2 Tbsp oyster sauce
• 1 Tbsp sake
• ⅛ tsp freshly ground black pepper
• white pepper powder ((optional))