ingredients:

100 gram of flour
3 chicken eggs
60 gram of butter
150 gram of dark cooking chocolate
1/2 teaspoon of baking powder
60 gram of sugar
1/2 teaspoon of vanila

steps:
stir the eggs and sugar until it fluffy for about 3 minutes
add flour, butter, baking powder, and vanila into the big bowl and stir it again for about 5 minutes
after that, add the melted dark cooking chocolate and stir it again
pour the dough into a rectangular baking dish
steam for about 30-35 minutes

happy cooking :)