Walnut cake

Batter

1. 1 Beat the egg whites until stiff with half of the sugar. Set aside.
2. 2 Beat the egg yolks, the butter and the remaining sugar. Add the reserved egg whites, the walnuts and the cookies, and mix well without beating.
3. 3 Place in a small rectangular baking pan, greased and floured. Bake in a medium oven for 30 min. Let cool, cut in half, and set aside.

Filling and frosting

1. 4 Put the condensed milk, the chocolate and the egg yolk on the heat and cook, stirring until thickened.
2. 5 Fill and cover the cake.