Try this Chicken Char Siu Bao (Manapua) recipe
Marinating the boneless chicken thighs overnight allows the five-spice blend and rice cooking wine to penetrate the muscle fibers fully. Baking the meat covered in foil at 350 degrees for 30 minutes traps moisture, while removing the foil for the final 10 minutes renders excess surface liquid and concentrates the glaze. Shred the cooled chicken using two forks to yield uniform strands that integrate evenly with the cornstarch-thickened sauce.
Dissolve the active dry yeast in warm water until the mixture foams, signaling microbial activity before it meets the flour. Kneading the dough for a full 10 minutes develops the gluten matrix required to trap carbon dioxide gas during the rise. Coat the resulting dough ball in sesame oil to prevent a dry crust from forming on the surface during fermentation.
Divide the risen dough into 12 even portions to ensure uniform baking times across the batch. Roll each piece flat, keeping the edges slightly thinner than the center to support the heavy filling. Seal the edges securely by pinching the dough closed before baking at 350 degrees for 30 to 35 minutes until the exterior turns golden brown.