Pork Tofu Soup

Bahan-bahan (3 porsi)

• 2 g reen onions/scallions
• 1 inch ginger
• 2 tsp toasted sesame oil ((for cooking))
• 4 oz ground pork ((substitute ground chicken, ground turkey, mushrooms, veggies, or more tofu))
• ⅛ tsp Diamond Crystal kosher salt
• ⅛ tsp freshly ground black pepper
• 1 Tbsp sake ((you could use Chinese rice wine or dry sherry, or skip it))
• ½ block medium-firm tofu (momen dofu) ((7 oz, 200 g))
• 1 cup chicken stock/broth ((vegetable stock/broth for vegetarian))
• 1 cup water
• 2 tsp soy sauce
• 1 Tbsp potato starch or cornstarch ((for the slurry))
• 2 Tbsp water ((for the slurry))
• white pepper powder ((to taste))