Sweet Read Bean Buns

Mix the dry ingredients in a stand mixer. Mix at medium speed for 5 minutes until fully incorporated. Add in the room temperature butter and mix for another 10 minutes. Let the dough rest and rise until twice its original size. Cut the dough into 50g portions. Shape each portion into a ball, then roll it out into a round shape. Place 40-50g of red bean paste into the center of the dough, and fold it well to enclose the paste. Let the shaped buns sit until they have risen 1.5 times larger. Bake at 350F (175C), using a pan to press down on the buns during baking.