Cake with Egg Whites

Description
In Romanian: Chec din albusuri

Ingredients

 * 7-8 egg whites,
 * 10 oz/300 g Sugar,
 * 5 oz/150 g butter or margarine,
 * 5 oz/150 g flour,
 * peel from 1 lemon,
 * 4 oz/100 g sliced walnuts,
 * butter and flour to grease and dust the pan

Directions

 * 1) Whip the egg whites with the Sugar. Gradually add the melted and still warm butter (margarine), stirring continuously.
 * 2) Then add the lemon peel and flour.
 * 3) Place half of the walnuts on the bottom of a buttered and dusted bread pan.
 * 4) Then pour the batter and the remaining walnuts on top. Bake, first at low heat and then increase it.