Ingredients:
80ml of milk
60ml vegetable oil
70g of flour
10g cocoa powder
4 egg whites
4 egg yolks
70g of sugar
1/3 teaspoon of salt
1/2 teaspoon lemon juice
Chocolate chips
Preparation:
- In a bowl, mix the milk, oil, flour and egg yolks. Divide into two portions and add cocoa powder to the second portion.
- In another bowl, beat the egg whites with salt, lemon juice, and sugar.
- Divide the white and dark mixtures into two portions.
- Transfer to baking sheet, add dark mixture, top with white mixture, and sprinkle with chocolate chips.
- Bake in hot water at 170°C (340°F) for 1 hour