China's astronauts aren't just living in orbit – they're cooking in it. 

During a special Tiangong Class for students from Hong Kong and Macao special administrative regions on Wednesday, payload specialist Lai Ka-ying showed off the Shenzhou-23 crew's "spiced up" kitchen.

A hot-air oven reaching 190 degrees Celsius lets them bake chicken wings, pumpkins and cakes aboard the space station.