Heat oven to 400℉.
Line 2 sheet pans with parchment paper. Set aside.
With an electric mixer, beat cream cheese, sugar, and vanilla until smooth and creamy, about 1-2 minutes. Set aside.
Working with one piece at a time, unfold puff pastry sheet and place on work surface.
Press gently to flatten.
Using crease marks as a guide, cut pastry into thirds.
Cut each slice in half horizontally so that you have 6 approximately 3 inch x 4 inch pieces.
Brush about ¼ inch of all 4 edges of each piece of dough with a small pastry brush dipped in egg wash.
Fold about ¼ inch of each side (brushed with egg wash) in toward the center of the dough.
Press gently to seal.
Brush folded over dough with egg wash.
Spread 1½ teaspoons of the cream cheese mixture evenly over the center rectangle of dough all the way up to the edges you folded over.
Top with 1 Tablespoon cranberry sauce and spread evenly.
Repeat assembly with remaining dough, egg wash, and fillings.
Bake for 20 minutes, until the sides are golden brown and the whole tart is puffed.