Healthy & Yummy steam Sweet Potato Cupcake

Here's my new recipe Healthy & Yummy madw with purple sweet potato, no egg is needed soft and slightly chewy
Steam cake recipe
Ingredients:
150 g. Sweet porato
140 g. all purpose flour
60 g. Tapuoca starch
180 ml water
1 tsp  instant yeast
1 pinch salt

Steam over high heat  for 15 minutes.