Weigh flour, yeast, sugar, salt and water
Mix all the ingredients with a spoon until all water is aborbs and a loose dough is formed
Use one hand to knead the dough until all flour is incorporated into the dough. Place the dough in the mixing bowl, cover it with a plastic wrap, and let the dough rest for 20 mins at room temperature
After resting, knead the dough for 3-4 mins until the dough surface is smooth. Put it back into the bowl, cover it with a wrap, and let it fermentate for 40 mins at room temperature
Take out the dough and knead for 2 mins to get rid of the air. Use fingers to pucn through the dough to form a donut shape
Break the "donut" and divide it to 6-7 pieces. Take one piece and cover the remaining dough pieces with a wrap
Use a rolling pin to flatten the dough piece in one direction. Fold the flat dough. Repeat this process twice
Fold the dough and place the folds at the bottom. Use the rolling pin to evenly flatten the dough to about 1/2" and make it as round as possible
Bake the dough at low to medium heat with lid on for 3-4 mins on each side
Once both sides of the bun turn golden and the dough is fully cooked, slice it to half and stuff it with cooked meat