pork shoulder (about 200 g) • shrimp, peeled and deveined (about 110 g) • dried shiitake mushrooms (about 50 g) • siu mai or wonton wrappers • Tobiko (flying fish roe), masago, or goji berries (for garnish), • salt • ground black pepper • sugar • cornstarch • sesame oil • mushroom soaking water (about 60 ml)