1600 Italian biscuit torte

Ingredients (for 6 persons or for 2 layers)

• 7 eggs
• ⅓ lb (⅔ glass) sugar

Beat 21 egg yolks and 1 lb sugar until the mixture whitens. Separately beat 21 egg whites into soft peaks and carefully fold into the egg yolks, gradually sieving on nearly ½ lb flour. Pour the mix