Start by combining the diced apples, sugar, flour, cinnamon, and lemon juice in a mixing bowl. Stir everything together until the apples are evenly coated and the mixture looks thick and glossy.
Lay out the egg roll wrappers and place about 2 heaping tablespoons of filling in the center. Fold in the sides and roll tightly, using a little water to seal the edges so the filling doesn’t leak during frying.
Heat the oil to 350°F in a frying pan or deep fryer. Carefully fry each egg roll for 4-5 minutes until golden brown and crispy. Remove them with tongs and drain on paper towels to remove excess oil.
Sprinkle with powdered sugar or drizzle with caramel sauce while warm. Serve immediately for the best texture and flavor.