Fresh Blueberry Dessert Bruschetta

Bahan-bahan (20 porsi)

• 1 large egg
• 1 tablespoon water
• ½ 17.3 ounce package Puff Pastry sheets ((1 sheet), thawed)
• 2 tablespoons granulated white sugar
• ½ teaspoon ground cinnamon
• 6 ounces cream cheese, (softened)
• 1 teaspoon freshly squeezed lemon juice
• ¼ cup powdered sugar, (sifted)
• 2 tablespoons whipping cream ( (plus more, as needed))
• 1 cup fresh blueberries, (rinsed and patted dry)
• small fresh mint leaves, (for garnish)