Preheat oven to 190C.

Melt chocolate, cream, and butter.

Mix the egg whites with sugar. Then add egg yolks and mix again.

Pour in chocolate/cream/butter mixture, and mix it all again.

Add flour, and stir it all together with a spoon.

Pour the mixture in muffin cups, and bake 15 minutes.

I even did this: poured the mixture a little bit, then added ground biscuits and one piece of chocolate; then I poured the mixture over it again.