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Preheat oven to 180 °.
Melting melt 1 cup of chocolate in a water bath.

Beat the egg whites until they are firm. Then gradually one cup of sugar. Furthermore mix for a device meringue.

In a separate bowl, mix the cocoa, cornstarch and salt together.
Slowly mix the meringue in the dry ingredients.
Add melted chocolate and remaining chips into the dough. It will work very hard and heavy.

Put some icing sugar in a bowl.
Form spheres of the size of a golf ball to the dough. Roll it back then covered in powdered sugar and place them on a baking sheet with parchment paper.

Bake the cookies for about 10 minutes, they should just start to crack.
Ingredients:

• 1 1/2 cup dark chocolate chips or chunks in
• 3 egg whites
• 1 1/2 cup powdered sugar
• 1.2 cup unsweetened cocoa powder
• 1 tablespoon cornstarch
• 4.1 teaspoon salt

Total time: Preparation + cooking time: 25 minutes
Yield: 4 people