Bird's milk cake

Ingredients:

- 4 egg whites
- 1 tbsp. castor sugar
- juice of 1/4 lemon
- 0,7 oz gelatin
- 1,5-2 tbsp. cacao
- 2 cups milk
- sugar to taste
- 0,35 oz gelatin

How to:

1. Soak the gelatin in water for an hour, heat it up and let it cool a little bit. Whip the egg whites into fluffy foam, add castor sugar and lemon juice. Pour carefully the dissolved gelatine continuing whipping.
2. Soak the second portion of gelatine for an hour, then heat it up. Brew the cacao and let it simmer for 5 minutes to become thicker. Add the gelatine to the cacao. 
3. Pour a part of the cacaco and gelatin mixture into the form, let it thicken in the refrigerator. Then put the whites and gelatine mixture on top and put again in the fridge for 15 minutes. Then slightly heat up the remaining cacao and gelatin mixture and pour over the cake, and put it in the fridge for 1-1,5 hours. Take out the cake and turn it upside down.