01 -
Zest the lemons and squeeze enough juice to yield half a cup.
02 -
In a mixing bowl, whip the heavy cream until soft peaks form.
03 -
In another bowl, combine sugar and egg whites; whip until stiff peaks form.
04 -
Gently fold lemon juice and zest into whipped cream.
05 -
Carefully incorporate the egg whites into the lemon mixture.
06 -
Chill in the refrigerator for at least four hours before serving.