
| eggs | 3 |
| chocolate power | 12 g |
| flour | 55 g |
| hot water | 57 ml |
| sugar | 35 g |
| oil | 28 g |

First , mix 12 grams of chocolate powder and 57 milliliters of hot water together.

Second , add 28 grams of oil and stir.

Third , pour 55 grams of flour and mix it.

Fourth , separate the yolk from the egg white and pour in the yolk in three times. Stir well after each addition.

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Fifth , when beating the egg white, add 35 grams of sugar three times.

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Next , mix 1/3 egg white and chocolate batter together.

Then add the rest of the egg white and mix it.

After that , pour the mixture into a baking tray.

Finally , put the mixture in an oven and bake it for an hour at 150 degrees.

Finish!