Beat softened cream cheese with granulated sugar and vanilla extract until smooth and creamy with no lumps, about 1-2 minutes with a hand mixer or 3 minutes by hand.
8 oz cream cheese, 0.25 cup granulated sugar, 1 tsp vanilla extract
Unroll thawed puff pastry on parchment paper and cut into 6 to 8 rectangles about 3x4 inches each. Space them about 2 inches apart on a parchment-lined baking sheet.
1 sheet puff pastry
Place 2 tablespoons of cream cheese filling in the center of each rectangle, leaving a ½-inch border. Fold dough over filling to form a triangle or rectangle, press edges with a fork to seal completely, and poke 2-3 small vent holes on top with a knife tip.
8 oz cream cheese
Beat 1 egg with 1 teaspoon water and brush evenly over each pastry, including the edges. Chill shaped pastries in the refrigerator for 10 minutes while preheating the oven to 375°F.
1 large egg
Bake pastries for 10 minutes, brush with a second coat of egg wash, then bake an additional 10 to 15 minutes until deeply golden, fully puffed, and crispy.
1 large egg
Transfer pastries to a wire rack and cool for 15 minutes before serving. Optionally brush with melted butter for extra shine and richness and dust with cinnamon sugar while warm.
1 tbsp butter, 0.5 tsp cinnamon, brown sugar