1. Pour the powdered sugar into the butter and mix it evenly with a whisk
2. Sift the egg yolk into the evenly stirred butter paste
3. Whisk in a feather shape
4. Add the whipped cream in three times (wait for the whipped cream and the butter to fully blend before adding the remaining whipped cream)
5. The whipped mixture is light yellow in color
6. Sift cornstarch and low-gluten flour into the butter mixture
7. Stir it with a silicone spatula until there is no excess flour and knead it into a smooth dough
8. Take a small piece of dough and knead it into a small ball with your hands
9. The kneaded small balls are placed on the baking tray, leaving a little space when placing them to prevent the small steamed buns from becoming larger and sticking together during baking
10. Put the baking tray in the oven at 180 degrees and bake for 12 minutes. After baking, take it out and let it cool. You can enjoy
