Line a standard 6 cups muffin pan with cupcake liners. Set aside.
To a bowl, add sugar and water. Whisk until sugar is completely dissolved.
Add vanilla extract and mix well.
Sift in flour and baking powder.
Mix until dry flour is no longer visible. DO NOT OVER MIX (mix until dry and wet ingredients are just combined).
Spoon batter into cupcake liner until 2/3 full.
To steamer or wok, add water. Cover and bring to a boil.Then, place cupcake pan into steamer.Cover and steam for 12-15 minutes on medium high heat.DO NOT OPEN during steaming.
Transfer cupcakes to wire rack to cool down completely.
Video
Notes
Video timing: Steam over medium-high heat for 12–15 minutes without opening the steamer; the card uses the upper end of the range.The total uses the existing preparation estimate plus the cooking and any separately listed preheat time. Allow additional cooling time and extra batches where applicable.