Sieve pao flour into a bowl. Add sugar, instant yeast, milk powder, baking powder, pumpkin puree. Pour milk into it. Mix well with a spatula. Add oil and salt. Knead until it is no longer sticky. Cover with cling wrap or cloth. Let it ferment for one hour.
After one hour, punch the air out. Flatten the dough, divide it into 4 pieces evenly, round it, and cover with cling wrap. Let the dough rest for 10 minutes.
For each dough, divide it into 5-6 small pieces. Round each one of them. Flatten the small dough with rolling pin into a thin, round shape.
Line them up on top of each other. Roll from one end. Dab a bit of water on the dough so it can stick to each other. Cut in the middle using a knife. Put the dough on a bao paper. Shape each petal resembling a rose.
Let them rise up one more time for 10 minutes. Preheat the steamer. Steam for 20 minutes using medium heat. Enjoy!
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Notes
Make sure the pumpkin puree is really smooth, so you have a very smooth dough.
Roll up the flattened dough and dab some water if it doesn't stick to each other. After cutting it into two, try to shape the petals like blossoming rose.
If you don't have pao paper to line it, use parchment paper, cut it a little bigger than the dough size.
After 20 minutes of steaming, do not take off the lid right away. Turn off the heat and let the lid on for 5 more minutes.