Preheat oven to 350°F (175°C). Grease a 9x13-inch baking pan with non-stick spray.
Mix 1 cup granulated sugar with softened cream cheese, egg yolk, and vanilla extract until smooth.
Sprinkle 1-2 tablespoons of cinnamon sugar (mix remaining sugar and cinnamon) evenly on the bottom of the greased pan.
Roll out one dough can, press seams to seal, and lay it evenly in the pan.
Spread cream cheese mixture evenly over the dough.
Roll out the second dough can, seal seams, and place it over the cream cheese layer.
Beat the egg white until frothy and brush it evenly on top of the dough.
Sprinkle remaining cinnamon sugar over the top.
Brush melted butter evenly over the top layer.
Bake for 25-30 minutes until the top is golden brown and puffed.
Cool at room temperature for 30 minutes, then refrigerate for at least 2 hours before slicing.