Ingredients for 6 servings:
160gr dry biscuits (Osvego)
160gr butter
160gr sugar
50gr unsweetened cocoa powder
2 whole eggs

Preparation:
In a medium mixing bowl beat eggs with sugar for 5 minutes.
Add soften butter and beat again.

Crash in small pieces all biscuits. Beat mixture till creamy and add cocoa powder very slowly.

Pour mixture in a rectangular pan (such as the one for plum-cake) and refrigerate for half a day at least.

Slice and serve on a serving plate with whipped cream.