In a small bowl, add water and yeast together. Let it sit for 5-10 minutes.
Add warm mix and vegetable oil to the yeast mixture.
In a large bowl stir the flour, baking powder, sugar, and salt together.
Stir in the wet ingredients with the dry ingredients. Kneed the dough until it's soft and smooth.
Cover the dough with plastic wrap and let it sit for an hour.
Add salt, hoisin sauce, and oyster sauce to your meat.
Boil 8 eggs for 10 minutes. Peel the eggs and cut it in half.
After an hour, split the dough into 16 balls. Roll the dough flat.
Put the egg and meat filling on the dough.
Wrap up the dough over the fillings. Pinch the ends together at the top.
Steam the buns for 30 minutes.
Let it cool for 10 minutes and you're done. Enjoy!