Make the apple pie filling by combining the diced apples, sugar, flour, cinnamon and lemon juice in a bowl. Mix well.
Lay an egg roll wrapper out in a diamond shape. Place 2 heaping tablespoons of the apple filling towards the bottom third of the wrapper.
Fold the bottom corner up over the filling. Fold in both sides and continue rolling up into a tight log shape. Use a dab of water to seal the edge and secure the roll closed.
Heat 2-3 inches of oil to 350°F in a heavy bottomed pan, pot or deep fryer.
Carefully add 2-3 egg rolls at a time to the hot oil, being sure not to overcrowd. Fry for 4-5 minutes until golden brown, turning occasionally.
Transfer the crispy apple pie egg rolls to a paper towel-lined plate to drain excess oil.
Dust warm egg rolls with powdered sugar if desired. Serve with caramel sauce for dipping.
Enjoy these crispy, fruity handpies while warm and fresh! Leftovers can be refrigerated and re-crisped in the oven or air fryer before serving again.

Let me know if you need any other details on bringing this nostalgic fast food favorite to your kitchen!