Possible Clues:

• Chinese steamed bun
• Steamed bun
• Steamed bun in Asian cuisine
• Steamed Chinese bun
• Pixar short featuring a dumpling that comes to life
• Chinese dumpling
• Bun in a bamboo steamer
• Chinese bun
• Pixar film in which a Chinese bun comes to life
• Pixar short about a steamed bun