4 eggs
4 tablespoons white sugar
3/4 cup milk
1 teaspoon vanilla extract
1/4 teaspoon lemon zest
4 pounds confectioners' sugar for dusting
Line a greased 1 tablespoon baking dish with waxed paper. In a large bowl, beat the egg yolks with 1 cup sugar. Mix milk, 2 tablespoons sugar, lemon zest and vanilla extract into egg yolks, egg yolk mixture by hand until distributed. Pour 1/4 cup egg yolk mixture into cool whip to serve (do not use pastry blender). Dust warm whipped with confectioners' sugar for finishing. Refrigerate until chilled before cutting into squares.