In a medium bowl, combine the diced apples, brown sugar, cinnamon, and lemon juice. Stir until the apples are evenly coated, and set this mixture aside.

Take an egg roll wrapper and place it on a clean surface. Spoon about 2 tablespoons of the apple filling onto the wrapper, positioning it slightly away from the edge.

Fold the bottom corner of the wrapper over the filling, then fold in the sides, followed by rolling it up tightly from the bottom to the top. Make sure the edges are sealed well. If needed, dab a little water on the edges to help them stick.

In a deep frying pan or pot, add oil to a depth of about 2 inches. Heat the oil over medium-high heat until it reaches around 350°F (175°C).

Carefully place a few egg rolls in the hot oil, frying them for about 3-4 minutes until they are golden brown, turning occasionally for even cooking. Remove them with a slotted spoon and let them drain on paper towels.

If desired, dust the fried egg rolls with powdered sugar for that extra sweetness. Serve warm and enjoy!