Roasted pork yakibuta

Ingredients

• 1.5 kg pork (belly pork)
• 1/2 teaspoon salt

(A):

• 2 tablespoon vinegar
• 1 litre water

(B):

• 1 teaspoon pepper
• 1/2 teaspoon Chinese five-spice powder
• 2 pieces of red fermented bean-curd (tau chu or nam yee), well mashed
• 1 teaspoon Chinese Shao Xing cooking wine
• 1 teaspoon thai fish sauce
• 1/2 teaspoon sugar