Shake the Limoncello, lemon-flavored vodka, lemon curd
, and 1/2 teaspoon lemon juice well over ice and strain
into an up glass.
Dump the shaker, and load with fresh ice, then add the egg
whites and the lemon juice
and shake vigorously, for approximately 45 seconds, until foamy. Pour into the same up glass, creating a layer of foam
over the lemon cocktail