1. Melt the butter. In a separate saucepan, heat the milk, remove from heat and cool for about 10 minutes. Mix the flour, eggs, sugar, salt and liqueur in a blender and whisk until smooth. Pour in the milk and butter and whisk dough again.
2. Place the dough in the refrigerator for 6 hours, preferably overnight. Fry in a pan thin pancakes on both sides and place on a separate plate.
3. Prepare the cream, whisking egg yolks with ½ cup sugar and put in a water bath. Stir, bring to Blandy yolks yellow status.
4. Cool. Wash and dry the bowl. It beat the whites with a pinch of salt to the air peaks. Vyspte remaining ¼ cup sugar and beat again. In a separate bowl, whip the cream well. In the yolks and mascarpone enter liqueur, then - cream and proteins (whip after adding each ingredient separately).
5. Stir, cover cream and refrigerate for 1-2 hours.
6. Apply the cream between each layer of pancakes. Place the cake in the refrigerator for an hour. An hour later, the remaining cream put on top of the cake, top grate the chocolate and put the finished cake in the refrigerator for 2 hours.