Nikuman (steamed pork buns)

Instructions

1. Mix the milk, lukewarm water, sugar and yeast, then let it rest for 5 minutes.
2. In a large bowl, add the flour, baking powder, a pinch of salt and the oil, then pour in the yeasted liquid. Knead for 10 minutes until you get a smooth, elastic dough.
3. Cover and let the dough rise until it has doubled in volume, about 1 hour.
4. Meanwhile, mix the pork, cabbage, onion, ginger, soy sauce, oyster sauce and a pinch of pepper for the filling.
5. Divide the dough into 8 pieces, flatten each one into a disc, place a spoonful of filling in the center and pinch closed to form a ball.
6. Set the buns on squares of baking paper, spaced apart, and let them rest for 20 minutes.
7. Steam them in a steamer basket over a pan of simmering water, lid on, for 15 minutes.
8. Serve hot, with soy sauce on the side.