This mantou dough XiaoHong uses a different method with single proof by adding the yeast AFTER the dough has been kneaded.
Ingredients
500g bao or regular flour
270g warm water
5g instant yeast + 5g water
Method
1. Mix the flour and water and knead until a dough forms. Cover and allow to rest for 15 minutes. The dough already comes out smooth.
2. In a small bowl, add 5g of instant yeast to 5g water. Mix until combined and bloomed.
3. Create a well in the dough and pour in. Slowly pull and fold from outside in and knead until combined for about 2 minutes.
4. Roll into a log and divide into around 10 pieces. Flatted and continue kneading and then form balls.
5. Place in a steamer lined with paper. Cover and allow to proof until 1.5 to 2x, until the dough springs back when gently depressed with a thumb.
6. With the steamer on top, turn on the flame to high and steam for 15 minutes. Turn off the fire and allow to rest for 3 minutes. The bao should be fluffy and moist.
Similarly the empty bao version by Little Goose Food almost mixes the yeast in afterwards. This video describes a better method of making tall beautiful buns.
Ingredients
250g just boiled water
500g bao or regular flour
3g yeast
Method (makes 6)
1. Into the hot water, grab a handful of flour and put into the water. Use chopsticks to stir into paste.
2. Add the remaining flour and stir with chopsticks. This will yield a claggy dough. Use hands to gather into a ball. The hot water will break the gluten structures to make the buns more soft and bouncy.
3. Cover to rest for 10 mins.
4. Once it's relaxed, knead for 10 to 15 minutes until the surface is smooth.
5. Press it flat into a rectangle and make an indentation in the centre. Add the yeast into the centre. Add around 1 to 2 tbsp of water just to dissolve the yeast. Roll up the dough and knead until the yeast is well incorporated, around 5 minutes. Using this method, it's easy to form a dough with a smooth surface.
6. Roll into a log and divide into 6 pieces. Knead each piece to release the gas, and form a ball with your palm. Then, roll to form a tall cone.
7. Place directly into the steamer onto parchment. Cover and allow to rest until 1.5x or until a finger indentation on the surface springs back.
8. Start a wok with water on high. Only when the water is rapidly boiling, put the steamer on top and steam for 15 minutes. Turn off the flame and rest for 3 minutes.
Similarly Chui Jie uses this recipe for summer. This recipe has 5g yeast with 250g water and 500g flour. She kneads 3x for around 5 minutes each, but rests in between each kneading. The dough is easier to knead than 15 mins upfront. She says using this method of adding yeast later, all the buns rise at the same time to the same size. She also starts the steaming from cold water.