10 egg whites
20 tablespoons sugar
A few drops of lemon juice
Whisk the egg whites and add 1 tablespoon of sugar until a solid foam is formed. Then add a few drops of lemon and take out in a tray of puslice. Dry for 2 to 3 hours at a very low temperature in the oven.
This cake was made by grandmothers for their grandchildren and was one of the most popular cake recipes until chocolate and similar ingredients came into use.