1. Put 100 grams of flour, 100 grams of black sesame powder, and 40 grams of sugar into a basin. Add 3 grams of yeast and 3 grams of baking powder, mix well.
2. Add 130 grams of warm water and stir well.
3. Put brown sugar in a bowl, add 130 grams of warm water and mix until dissolved.
4. Put the remaining 200 grams of flour into a basin, add 3 grams of yeast 3 grams of baking powder, pour in the brown sugar water and mix well.
5. For the marble effect, mix the two types of dough together and stir. It can also be divided into several pieces and spread layer by layer.
6. Brush the mold with oil, pour the mixed dough, dip the surface with water and pat it flat, sprinkle with sesame seeds and chopped jujube. Brown sugar and jujube are a perfect match.
7. Ferment in a warm place about 2 times the size, 80% full.
8. Pour water into the pot and put it in the mold, boil for 30 minutes, turn off the heat and simmer for 2 minutes.
9. Demould and cut into pieces.
