Sweet Buns "Banh Mi Ngot"

My mom absolutely loves these sweet buns found in Chinese bakeries so I tried to make them at home. I searched up several recipes and finally emerged several recipes into my own. My method does not use a "bread paste" as a starter but I will try one in the the near future for my bread baking.

Sweet Bread Buns 

1 cup warm water
5 tsp yeast
1 tsp sugar

1 1/2 cup milk
2 tsp vanilla extract
1/2 cup butter, melted
3/4 or 1 cup of sugar (depends on how sweet you like it)

2 eggs, beaten
5 tbsp oil

2 tsp salt
4 ½ cups of all purpose flour

Egg wash:
1 egg
2 tbsp milk
2 tbsp sugar

1.      Place yeast and sugar in a bowl. Add in water and whisk to dissolve. Let proof for 10 minutes.

2.      In a saucepan, heat milk, vanilla, butter and sugar while stirring; DO NOT LET IT BOIL. Remove from heat and let cool till warm to touch. Add in beaten eggs and stir with a wooden spoon till smooth. Add in oil.

3.      In a large bowl or a mixer bowl, add in 1 cup of flour and the yeast mixture. Mix by hand or a dough hook until combined. Add in milk mixture and continue to mix. Add in a cup of flour and the salt until it is fully incorporated; then add in another cup of flour. Repeat until all of the flour is used up and a sticky ball of dough is formed.

4.      Turn sticky dough on a smooth, clean surface, dusted with flour. Knead for 5-7 minutes adding more flour until dough is smooth and not longer sticky. Knead into a big ball. In a large bowl, grease with 2 tbsp oil and place dough inside. Cover with a towel and leave in a warm place for 1 hour.
Preheat oven to 300 degrees Celsius.

5.      After 1 hour, dough should have raised double in bulk. Grease a round cake pan or a rectangular baking pan. Cut dough with a knife into equal portions, making each portion weigh around 50-70 grams; roll up into balls. Assemble into pans, leaving a bit of space between each ball for expansion.

6.      After you are done assembling, cover with a towel and leave for 1 hour.
Prepare egg wash by beating egg, sugar and milk together.

7.      After 1 hour, brush with egg wash, and bake for 30-35 minutes until golden brown.(DO NOT OPEN OVEN DOOR WHILE THE BREAD IS BAKING)
When bread is done, let cool for 5 minutes, loosen sides with butter knife and remove from pans; transfer to racks and cool completely.

Good luck!!