Semifreddo con Vicenzovo: Refrigerator Lady Finger Cake

6 servings:

1 package 7 oz Vicenzovo lady fingers

1 cup whipped heavy cream

½  cup sweet liqueur

1 cup milk

¼ cup sugar

2 egg yolks

¼ cup flour

Pinch of salt

1/8 tsp vanilla flavor

1/8 tsp grated lemon peel

Whisk egg yolks, sugar and flour together. Pour in ½ of milk to obtain a creamy mixture. Add salt, vanilla, grated lemon peel and remaining milk. Boil over medium heat for 3-4 minutes. Keep mixing to avoid curdling. Cook until thick. Set aside to cool. Whip heavy cream and add it slowly to cooled mixture. Moisten lady fingers with liqueur. Line dish with ½ of the lady fingers. Spread cake with cream mixture. Top with second layer of moistened lady fingers. Freeze. Turn the cake upside down on plate and serve cool.