Mix the warm water and sugar stir till sugar is dissolved. Add the yeast to the mixture stir till yeast is dissolved. Let the yeast bloom about 5-6 minutes.

Mix the salt, and flour. Add the flour mixture to the yeast mixture and mix. Knead for 10 minutes. If sticky add a bit of dusting flour till no longer sticky. Form a ball.

Add dough to an oiled bowl and coat the dough with oil. Cover and let rest for 1 to 1-1/2 hours it should double in size.

When it's risen push your fist into the dough and work in the baking powder by kneading for 5 minutes.

Let it rest 10 minutes. Divide into 10 equal portions and form balls.

Drain the tuna. Chop the eggs and peppers. Shred the cheese.

Mix all the filling ingredients together.

Roll the balls into disc. Start the steaming water. Add the filling to one of the disc.

Press and twist the disc shut add the bao bun to the steamer seam side down. Repeat till steamer is full.

Steam for 15 minutes till the buns are done. Repeat till all are steamed.

Let rest 10 minutes and serve. I hope you enjoy!