Perut Babi Rebus dengan Meigan Cai (梅干菜焖肉)

Bahan-bahan (6 porsi)

• 1 1/2 pounds perut babi tanpa lemak tanpa kulit ((potong 1"))
• 3 cups meigan cai ((dried preserved mustard greens))
• 2 tablespoons minyak netral
• 35 g rock sugar ((or 2 1/2 tablespoons granulated sugar))
• 2 star anise
• 3 slices jahe
• 1/4 cup Anggur Shaoxing
• 2 tablespoons kecap ringan
• 1 1/2 teaspoons kecap hitam
• 4 cups air