Think personal apple pie pockets that you don't have to share!
Using dry cornstarch directly in cold liquid causes clumping, so always whisk the sugar, cornstarch, cinnamon, vanilla extract, and salt into the half cup of cold water until fully dissolved before adding any fruit to the pot. Scaling this recipe up or down requires maintaining the exact ratio of two teaspoons of cornstarch per three cups of peeled and chopped apples to ensure the filling achieves the proper viscous consistency without turning gummy or runny. Fuji apples work well here because their dense cellular structure holds up to seven to ten minutes of medium-high heat without disintegrating into applesauce. Egg roll wrappers behave differently than laminated pie dough; moistening the borders thoroughly and crimping them firmly with the prongs of a fork prevents the pockets from bursting open during baking. Bake these pastries at 350 degrees Fahrenheit for fifteen to eighteen minutes until the edges display a distinct golden-brown hue. Letting the baked pie-lets rest for five minutes allows the interior starches to set fully before consumption. Unused wrappers should remain stacked under a damp paper towel during assembly to prevent them from drying out and cracking.