Preheat oven to 350. Lightly grease 8x12x2 baking pan.
Combine softened cream cheese, egg yolk, sugar, vanilla, and mix by hand till smooth.
Unroll one package of rolls and place dough on bottom of baking pan.
Spread cream cheese mixture evenly over bottom layer of dough then cover with second package of rolls.
Brush top generously with beaten egg white and sprinkle with topping mix.
Bake til golden brown (approx. 35 minutes), cool completely and sprinkle with confectioner's sugar as desired. Enjoy!