Make the Dough:

In a bowl, mix the flour, salt, yeast, and warm water.
Knead into a smooth dough, then cover it and let it rise until it doubles in size (about 1 hour).

Prepare the Filling:

In a food processor, combine ground beef, onion, scallions, salt, pepper, five-spice powder, soy sauces, oyster sauce, and sesame oil.
Blend until well mixed and set aside.

Shape the Dough:

After the dough has risen, punch it down to release air bubbles. Roll it out into a log and cut it into 21 pieces (around 35 g each).

Roll each piece into a thick wrapper, leaving a slight bump in the middle.

Fill and Seal:

Add a spoonful of the filling to the center of each wrapper. Pinch the edges together to seal, forming the bao zi.

Fry the Bao Zi:

Heat some oil in a cast-iron pan over medium heat. Place the bao zi in the pan, flat side down, and fry for 2-3 minutes until golden brown on the bottom.

Simmer:

Pour the flour and water mixture around the bao zi (not directly on top), cover the pan with a lid, and let it simmer for about 15 minutes until the liquid is absorbed.

Garnish and Serve:

Sprinkle black sesame seeds and chopped scallions over the fried bao zi before serving. Enjoy!