01 - In a mixing bowl, beat cream cheese, granulated sugar, egg yolk, vanilla extract, and lemon zest until smooth and creamy with no lumps remaining.
02 - Lay an egg roll wrapper flat with one corner pointing toward you. Place 1 to 2 tablespoons of cheesecake filling near the corner closest to you.
03 - Fold the bottom corner over the filling, then fold in both sides tightly. Continue rolling and seal the top edge with a flour-and-water paste.
04 - Repeat the filling and rolling process with the remaining wrappers and cheesecake filling.
05 - Heat vegetable oil in a deep fryer or heavy skillet to 350°F.
06 - Fry the egg rolls in batches for 2 to 3 minutes, turning occasionally, until golden brown on all sides.
07 - Transfer fried egg rolls to a paper-towel-lined plate to drain excess oil.
08 - Dust generously with powdered sugar and serve warm alongside fresh berries or drizzle with chocolate or caramel sauce.