Add apples, brown sugar, granulated sugar, cinnamon, nutmeg, and salt. Cook, stirring, until apples soften, 5–7 minutes.
Whisk cornstarch with 2 tbsp water and the lemon juice. Stir into the apples and simmer until thick and glossy, about 1 minute.
Remove from heat. Stir in vanilla, then spread the filling on a plate to cool for 10 minutes.
Lay a wrapper on a board. Spoon 2–3 tbsp filling near one corner, fold sides over, and roll tightly. Seal edges with a dab of water.
Heat oil in a deep pot to 350°F. Fry 3–4 rolls at a time until golden, 2–3 minutes, turning once.
Drain on a rack or paper towels. Rest 5 minutes before serving.
Notes
For a lighter take, air-fry at 380°F for 8–10 minutes or bake at 400°F for 12–15 minutes, flipping once. Serve with warm caramel sauce or a scoop of vanilla ice cream. Leftovers keep 2 days in the fridge; re-crisp in a 375°F oven or air fryer for a few minutes.This recipe is an original creation inspired by classic Apple Pie Egg Rolls flavors. All ingredient ratios and instructions are independently developed.