diet cake

hi guys ....
today i'm gonna show you how you can make a diet cake but at first i'll tell you the story behind this cake:)
i have not active lately here because my father is seriously ill and it isn't good for him to use salt,sugar,red meat,beans....
he have has many visitors these days and unfortunately they usually bring us some pastry (in iran we always meet the patient because we believe this is very good for patient mentally) any way he likes to eat sweet thing when see pastries on the table :)
i promis him to make a healthy cake without sugar and oil ....

it's very tasty and you should try this..
we need these:
2bananas
2 eggs
1/2 cups cocoa powder
1 ts baking soda
1 ts baking powder
1 ts vanilla powder
1-1/2 cups oat flour
200 gr dark chocolate
15 gr butter

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